PARTXV I AREVISIO NO FONCINOTI SBENT H ()

A.P.M.DEKRUIF

Department ofPlant Taxonomy Agricultural University Wageningen, TheNetherlands

Received28-1-198 5 Dateo fPublicatio n17-VI-198 5 INTRODUCTION

Thispublicatio n isa monographi c revision of thegenu sOncinoti s containing sevenspecies ,si xo fwhic h are restricted tocontinenta l Africa and onet o Mada­ gascar.Th estud y isbase d mainly onherbariu m material. Inadditio n the author has had the opportunity to study living of five species in the wild and undercultivatio n inbotanica lgarden si n Africa.

HISTORY OF THE GENUS

When BENTHAM (1849) described the genus Oncinotish e based it on a single species,O. nitida. Th enam eOncinotis i sderive d from the Latin 'uncus'(i nGree k 'OVKOQ'), 'uncinatus' meaning 'shaped like a hook, hooked', referring to the curvedtail so fth eanthers . Several authors added further species, some of which were later reduced to synonomy, while others have been referred to the closely related genusBaissea. Meanwhile a few specieswer eerroneousl y described in theclosel y related genus . In 1954 PICHON revised Oncinotisan d attributed 10specie s to it, 7 of which aremaintaine d here.

GEOGRAPHICAL DISTRIBUTION

The distribution of the genus is shown on Map A. Oncinotistenuiloba i s the mostwidel ydistribute d speciesreachin gfro m Western to Eastern , O. glabrata, O. gracilisan d O.pontyi occur in West and Central Africa. Lesswidel y distributed species are:O. nitida,limite d to acomparitivel y narrow zone along the West African coast; O.hirta, restricted to Central Africa; and O. tomentella,endemi ci n Madagascar.

HABIT AND GROWTH

All Oncinotisspecie s are or climbing shrubs. The present author has observed the architectural model of TROLL (HALLE & OLDEMAN 1970: 125; HALLE et al 1978:242 ) in the field for five species {O.glabrata, O.gracilis, O. nitida, O. pontyi and O. tenuiloba).Th e species wind either to the right or to theleft , orar eno t twining.

FLOWERING SEASONS

Oncinotisspecie s flower towards the end of the dry and the beginning of the rainyseasons ,an d fruits maturei nth edr yseasons .

Agric.Univ. WageningenPapers 85-2 (1985) 1 RELATIONSHIPT OOTHE RGENER A

Oncinotisi sclosel yallie d toBaissea an d Motandra. These3 genera constitute the subtribe Baisseinae of the tribeIchnocarpeae. The author will return to this subjecti nhi sforthcomin g revisionof Baissea.

GENUS DIAGNOSIS

Oncinotis Benth. 1849:451-452;Bentha m& Hooker 1876: 718;Baillo n 1889: 210; Schumann 1895a: 179; Stapf 1902: 220-224; Stapf 1907b: 512; Pichon 1948a: 196-197; 1950: 113-114; Phillips 1951:588 ; Pichon 1954: 9-36; Codd 1963:288;Dye r 1975:468;Markgra f 1976:222-223. Fig.A ; MapA Type species: O. nitidaBenth . Homotypic synonym: O. sect. Afrotis Pichon 1948:196. Heterotypic synonym: 0\ sect. MalgotisPicho n 1948: 197.Typ e species:O. tomentellaRadlk .

Climbingshrubs o rlianas; whitelate xpresent . Branches unarmed. Branchlets opposite or subopposite, terete.Stipule s none.Leaves opposite or subopposite, thoseo fa pai requal ,withou tcolleter si nth eaxils ;petiol eofte n rounded beneath and channeled above when dry, otherwise terete, glandular along the adaxial side;blad eovat et oobovat eo rnarrowl yso ,usuall yacuminate ,sometime semar - ginate (or exceptionally rounded) at the apex, cuneate or rounded at the base, entire, sometimes undulate or recurved at the margin; midrib impressed above and prominent beneath; on each side 2-25conspicuou s secondary veins,whic h arecurve d towards themargin , anastomosing, impressed abovean d prominent beneath; often in the axils of some secondary veins domatia consisting of pits, often with a ciliate margin, or of a tuft of hairs; tertiary venation sometimes conspicuous, reticulate or scalariform. Inflorescences terminal or axillary, thyr- soid,rathe rlax ,many-flowered . Bracts,an d- ifpresen t- bracteoles,deciduous , insideglabrous ,ciliate .Flower s5-merous , fragrant, actinomorphic orwit honl y unequal sepals. Sepals imbricate, connate up to 1 mm at the base, subacute to obtuse at the apex, entire outside pubescent or with a dense tomentum, inside glabrouso ronl ysparsel ypubescen tnea rth eape xan dmargin ,ciliate ,exception ­ ally inside at the base 0-3 colleters per sepal, situated at the margin. Corolla: tube outside shortly pubescent, exept the portion, covered by the sepals,insid e glabrous,excep tfo rtuft s ofstif fhairs, alternatin gwit hth estamens ;a tth emout h of thecoroll a tube with 5alternipetalou s corona scales;lobe s in bud contorted and overlapping to the right, obtuse to subacute at the apex, recurved, entire, glabrous inside, slightly ciliate. Stamensincluded , connivent into a cone;fila­ mentsabaxiall y glabrous,adaxiall y pubescent; anthers introrse, fusiform, basi- fixed, acuminate, sagittate at the base and at both tips provided with a subglo- boseincrassatio n whichi su pt o0. 1 mmi ndiameter ;cell stwo ,discrete ,parallel , dehiscent throughout by a longitudinal slit; below the fertile part inside on the

8 Agric.Univ. WageningenPapers85-2 (1985) i\k^

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FIG. A. Leaf baseswit h petiole from above (2.7 x) and domatia (27 x); thenumbe r corresponds with the species number in this revision. (1. De Kruif 663; 2. De Kruif 659; 3. Gerard 5497; 4. DeKrui f701 ; 5. DeKrui f666 ; 6. Drummond 10187;7 .Decar y5298) .

Agric. Univ. WageningenPapers 85-2 (1985) c

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10 /Igr/c. £//i/v. WageningenPapers 85-2 (1985) connective a nearly oblong patch, the retinacle, 0.1-0.4 x 0.05-0.1 mm, with minute hairs along the margin, adhering to the pistil head. Pistil: ovary hemi- inferior; carpelstwo ,connat ea tth eextrem ebas eonly ,ovoid ,laterall ycompres ­ sed,entirel yo ronl yapicall ydensel ypubescent ;abruptl ynarrowe dint oth estyle , surrounded by a disk, adnate to the ovary at the base only, which iscompose d of a ring and 5lobes , alternating with the stamens; style obconical to almost cylindrical, composed of two connate strands, glabrous; pistil head glabrous, consisting of a slightly 5-winged upper and a cylindrical lower portion, to the latter ofwhic h the5 retinaclesadhere ;pisti lhea d at theape xwit h twoappendi ­ ces, united at the base, glabrous. Placentas adaxial, ovuliferous at the abaxial side only. Fruitspendulous , composed of two (sub-)equal follicles, often re­ curved or upcurved, connate at their extreme base, dehiscent along an adaxial lineo fdehiscence ,fusifor m tonarrowl ycylindrical ,a t theape xacute ,an dwhe n dry often curled, or obtuse; exocarp woody and at the outer surface smooth, sulcate,longitudinall y winged;endocar p stiff, thinly pergamentaceous, smooth inside. Seedsattache d to the adaxial side of the fruit, with at the apex a dense tuft ofsimpl ehair s(coma) ,directe d towardsth eape xo fth efruit ; grain laterally compressed, convex at one side and concave at the other, elliptic to oblong, glabrous, subacute to obtuse at the base, truncate at the apex, subundulate at themargin , with thehilu m at theape xan d witha raphedescendin g to thebase ; testa very thin; endosperm fleshy, in a thin layer completely surrounding the embryo; embryo straight; cotyledons first complicate, later unfolded, ovate to elliptic, at the base cordate, rounded or cuneate, at the apex acute, glabrous on both sides,wit h 3-10 secondary veins;rootlet s terete, rounded at the apex, glabrous.

Distribution:? speciesi nTropica lAfric a inclusiveo fMadagascar .

Note: The sections proposed by PICHON (1948a) and later rejected by him (1954)a sartificial ,ar eals ono tmaintaine d hereb yth epresen t author.

KEY TO THE SPECIES

1. Domatia absent or inconspicuous and consisting only of a tuft of hairs (see fig. A:2 an d3) ;branchlet sneve rglabrou s 2 Domatia usually present and consisting of pits with or without hairs along themargi n(se efig. A :1,4,5, 6an d7) ;branchlet shair yo rno t 3 2. Leavessparsel ycovere dwit hsimpl ean d (lessoften ) branched hairs;domati a consisting of a dense tuft of orange-brown simple bairs; petiole densely covered with simple and (less often) branched chairs, along the adaxial sidewit h 1-5 glands and near the base of the blade with at least 1,some ­ times2 pairso fgland s(se efig. A :2) ;coroll a 5.3-9.1m mlong ;lobe s 1-2.4 x aslon ga sth etube ;follicle s shortly rustybrown-pubescent . West and Central Africa 2.0.gracilis

Agric. Univ. WageningenPapers 85-2 (1985) 11 Leaves very densely covered with variously branched hairs; domatia very inconspicuous and consisting ofsom eshor t simpleo r variously branched hairs; petiole very densely covered with variously branched hairs, along theadaxia l sidewit h 1-15 glands and near thebas e ofth eblad ewit h 1-8, mostlyonl y2 glands(se efig. A :3) ;coroll a4.1-5. 9m mlong ;lobe s0.7-1. 1 x as long as the tube; follicles covered with an up to 2.5m m thick,deci - duousdens erust ybrow no rgre ytomentum .Centra l Africa . 3.0.hirta 3. Leaveswit hinconspicuou stertiar yvenatio nbeneath ,dul lan ddistinctl ypale r than above;leafblad e obovate and often emarginate at the apex; follicles narrowlycylindrical .Wes t and Central Africa 5.O.ponty i Leaveswit h conspicuous tertiary venation beneath, glossy and only slightly palertha nabove ;follicle snarrowl ycylindrica lo rfusifor m 4 4. Secondary veins strongly curved and shaping an angle of 10-35(-40)° with themidrib ;pit swit h adens e tuft of hispid hairs along themargin ; petiole puberulous or pubescent, along the adaxial side with 2 pairs of glands, usuallyon epai rnea rth ebas eo fth eblad e(se efig. A :6) ;follicle s narrowly cylindrical, at the outer surface sometimes with orange-brown lenticels, greyish-todar kbrown-pubescent .Wester n Nigeria to and Eastern South Africa 6.0.tenuilob a Secondary veins not strongly curved and shaping an angle of 50-75° with the midrib; pits without hairs, or only with a few short hairs along the margin;petiol ehair yo rnot ,alon gth eadaxia lsid ewit hvariousl yarrange d glands (see fig. A: 1,4 and 7); follicles narrowly cylindrical or fusiform 5 5. On each side 13-25 secondary veins, in the middle of the blade 1.5-5 mm from each other; pits always without a ciliate margin; corona"1-1. 6 mm long; follicles narrowly cylindrical, 21-28 x aslon g aswide ,a t the outer surfacesmoot han dglabrous .Wes t Africa 4.0.nitida On each side4-12 secondary veins,i n the middle of the blade (6-)8-28m m from each other;pit ssometime swit h aciliat emargin ;coron a 0.1-0.9 mm long; follicles fusiform, 3-18 x as long as wide, at the outer surface not smooth,puberulou so rpubescent ,glabrescen t 6 6. Corolla lobes2-2. 7 x aslon ga swide ;branchlet sglabrous ;petiol eglabrous , rarely puberulous; follicles 3-17 x as long as wide, 9.8-29.3 x 1.2-6.1 x 1.2-6.1 cm,longitudinall y winged whenmature ,wing s0.1- 3m mwide , sometimeswit h many small protuberances;exocar p 1-8 mm thick. West and Central Africa l.O.glabrata Corollalobe s4-7. 6 x aslon ga swide ;branchlet spuberulou st orust ybrown - pubescent; petiolepuberulou s or rather denselypubescent ; follicles 14-18 x aslon ga swide ,8.1-19. 5 x 0.41-2.1 x 0.4-2.1cm ,a t theoute r surface sulcate and often with pale brown lenticels; exocarp up to 1m m thick. Madagascar 7.0.tomentell a

12 Agric. Univ. WageningenPapers 85-2 (1985) 1. Oncinotisglabrat a(Baillon )Stapfe x Hiern 1898:674; Stapf 1902:222;Picho n 1954: 12-17; 13,pi . I, A-D; 17,fig. 1 ;Irvin e 1961:629 ;Hube r 1963: 80;Ada m 1975:958-959;1159 ,pi .484 ;1160 ,pi .485 . Fig.1 ; Map 1 Basionym:Motandraglabrata Baillo n 1888:760;Schuman n 1895b: 164. Type: Angola: Cuanza Norte: Ambaca road, Welwitsch 5957 (P, holotype; isotypes: BM, COI, G, K, LISU, MO;photographs : BR, GB,GH , LISC, NY, PRE,WAG) . Heterotypicsynonyms :O. batesiiStap f 1897:272; 1902:221-222;Hutchinso n &Dalzie l 1931:49 .Type :Cameroun : Efulen (= Efoulan), Bates40 3(K ,holo ­ type;isotypes :BM ,E ,G ,Z) . O. glandulosa Stapf 1902:221 : 1904:611-612 .Type :Cameroun : Bipinde (= Bipindi), Zenker 1552(K , holotype; isotypes: BM, BP, BR, COI, E, G, HBG, L,M ,MO ,NY ,P ,S ,W ,WAG ,Z) . O.jespersenii De Wild. 1908:25 6 (as O. Jesperseni). Type: Zaire: Equateur: nearMondomb e(BR ,holotype) .

Climbing shrubo r ,1.2-4 0 m high climbing over shrubs and in trees, 3-50 m long or more. Trunk 1.5-12c m in diameter; bark greyish-brown, first smooth, later longitudinallyfissured an d with large pale brown lenticels;inne r bark pale brown, with rope-like fine pale brown fibres; wood creamy, soft. Branches pale or dark brown, sulcate, with pale brown lenticels; branchlets brownish-green to grey, sulcate, glabrous. Leaves: petiole 7-24 mm long, gla­ brous or rarely puberulous, along theadaxia l sidewit h small triangular glands, up to 1m m long, often 1-3 clusters of 2-3 glands; blade elliptic to ovate (or exceptionally obovate or narrowly so), 1.6—3(—4.1) x as longa s wide,3.9-15. 4 x 1.5-7.4cm ,acuminat e (orexceptionall y rounded oremarginate ) at theapex , cuneate at the base, sometimes undulate or recurved at the margin, papery to coriaceous,glabrou so rrarel ypuberulou so nth emidri ban dveins ,dar k tomedi ­ umgree nabove ,slightl ypale rbeneath ,glossy ,especiall ys oabove ;o neac hsid e 5-12secondar yveins ; tertiaryvenatio nconspicuous ,reticulat et ofaintl yscalari - form; domatia sometimes absent, usually consisting of pits, sometimes with a ciliate margin. Inflorescence(2.5—)4—12. 5 x (1.5—)2—5 cm. Peduncle and branchesrust ybrown-pubescent ,glabrescent .Pedicel s2-4(-5 )m mlong ,densel y rusty brown-pubescent, glabrescent. Bracts,an d- ifpresen t- bracteoles,ovat e to triangular or narrowly so, 1.2-1.7 x 0.3-1.2mm ,acut e at the apex, outside rusty brown-pubescent. Sepalsyellowish-gree n to palebrown , ovateo r broadly so, 1.1-3 x aslon ga swide , 1.5-3.6 x 1.1-2.2mm ,outsid e rusty brown-pubes­ cent and there often with glabrous patches. Corolla in the mature bud 2.2-3.5 x aslon ga sth ecalyx ,6.9-11. 1m mlong ;tub eyello wt ogreenish-yellow ,urceo - late, widest in the middle, 1.1-1.4 x as long as the calyx, 2.5-4.7 mm long, 2-2.5 mm in diameter at the middle, 1.5-1.9m m at the base and at the apex; insidewit h tufts ofhair sa t 1.2-1.3 mm from the base;lobe syello w to greenish- yellow,triangular , 1-1.8 x aslon ga sth etube ,2-2. 7 x aslon ga swide ,2.3-5. 8 x 0.9-2.5 mm; outside glabrous or puberulous, usually only so at the base; corona first yellow to greenish-yellow, later turning white, 0.5-0.9 mm long,

Agric. Univ. WageningenPapers 85-2 (1985) 13 14 Agric. Univ. WageningenPapers85-2 (1985) pubescent at the base. Stamens inserted at 0.8-0.9 mm from the base of the tube;filament s0.2-0. 3m mlong ;anther s7-1 3 x aslon ga sth efilaments, 2.4-2. 8 mm long; tails 0.3-0.4 mm long; fertile portion 1-1.3 mm long. Pistil 2.9-3.5 mm long; carpels 0.8-1.3 x 0.5-0.9 x 0.2-0.4 mm, superior portion 0.3-0.5 mmlong ;disk :rin g0.2-0. 5 mmhigh ,lobe s0.1-0. 3 x 0.1-0.3mm ;styl e0.1-0. 2 mmlong ;pisti lhead :uppe rportio n0.2-0. 6 x 0.2-0.4mm ,lowe rportio n0.9-1. 1 x 0.2-0.4 mm;appendice s0.5-0. 7 mmlong .Eac h placentawit h60-12 0ovules . Fruits: follicles fusiform, or almost so, often recurved or less often upcurved, shaping an angle of 40-180°, 3-17 x as long as wide, 9.8-29.3 x 1.2-6.1 x 1.2-6.1cm ;exocar p 1-8 mm thick, very hard, longitudinally winged when ma­ ture;wing sundulate , in thematur e fruit 0.1-3 mmwid ean d up to 2m m thick, sometimes with many small protuberances, puberulous and glabrescent.Seeds numerous; coma 10-75 mm long; grain 5-27 x 2-6.5 x 1.3 mm, smooth or rugose, often only minutely so; cotyledons 5-26.5 x 1.8-6 mm; rootlet 3-4.5 mmlong .

MAP 1. Oncinotisglabrata (Baillon )Stap fe xHier n

Distribution: Tropical Africa from Guinea(-Conakry) to and Tanzaniaan dsout ht oAngola .

FIG. 1. glabrata (Baillon) Stapf ex Hiern: 1. flowering branch, j x;2. part of branch, J x; 3.domatia , 4 x; 4. leaf base with petiole from above, 4 x; 5. flower, 6 x; 6. opened flower showing 2 stamens and the pistil; the left stamen detached from the pistil; calyx, part of corolla, and 3 stamens removed, 8 x; 7. stamen, adaxial side, 8 x; 8. fruit, j x;9. seed, $ x. (1, 5-7. LeTestu4177;2.DeKruif712;3-4.DeKruif663;8-9.A.Leonard3318).

Agric.Univ. WageningenPapers 85-2 (1985) 15 Ecology: Rain forets, swamp forests, secondary deciduous forests and gal­ leryforests ,o nsand ,cla yan drock youtcrops ;alt .0-220 0m .

A selection of theca 360 specimens examined: GuiNEA(-Conakry):betwee n Moussadougou and Lola (fl. Mar.) Chevalier 20966 (P);nea r Ma- centa,alon groa dt oCossankor o (fl.June ) Lisowski 60281 (POZG);Dyek e( = Diecke),nea rN'Ze - rekore(fr .Sept. )Baldwi n 13324(K ,MO) . LIBERIA: Kondessu (= Kondezu), Boporo Distr. (fr. Dec.) Baldwin 10684A (K); Dobli Isl. (= Ting Dowuli), St. Paul R. (fl.) Bequaert 22 (A, K); Belefanai, Gbarnga Distr. (fr. Dec.) Baldwin 10552(K);Sanokwele(= Sanniquellie)(fr .Sept. )Baldwi n 13271(BR ,K ,MO ,NY ,P ,PRE ,WAG) ; Tappita( = Tapeta)(fr .Aug. )Baldwi n9066 A(K) ;nea rKanweake ,k m7 0roa dChieh n( = Tschien)- CapePalma s( = Harper)(fl .Mar. )J .J . F.E .d eWild e& Voorhoev e367 3(A ,BR ,K ,WAG) . IVORY COAST: near Oua (fl. May) Ake Assi 11801 (UCJ, WAG); Mt. Tonkoui (fl. Apr.) Ake Assi 8033 (UCJ, WAG); km 14 road Grand-Bereby-Tabou (Nov.) De Kruif 706 (UCJ, WAG); km1 3roa dfro mk m2 6Sassandra-Sa nPedro-roa dt oMonogag a(Nov. )D eKrui f71 2(UCJ ,WAG) ; km2 4roa dSassandra-Monogag a(Nov. ) De Kruif69 4(UCJ ,WAG) ;k m6 5roa d Abidjan-Ndouci (imm. fr. Sept.) De Kruif 346 (UCJ, WAG); Yapo Forest (Nov.) De Kruif 692 (UCJ, WAG);1 km ENE of Abie, 7 km N of Yakasse Me (Oct.) De Kruif 663 & 664 (UCJ, WAG); Left bank BayakokoreR. , 1 kmS o fBouroukro ,o nTanda-Koun-Fa o road(Oct. )D eKrui f68 1(UCJ ,WAG) . GHANA: road Asukesi For. Res. to Atroni (fl. Mar.) Enti FE 1290 (BR, K, MO, WAG); Fure For. Res. (fl. May) Hall &Naboo h GC 46655 (MO, WAG);Ateik u (fl. May) Viane 1951 (K, P); near Adiebeba, km 3 Kumasi-Bekwai road (Sept.) Krukoff 1947-7 (MO, NY); Atewa For. Res. (fl.Mar. )Hal l& Loc kGC4414 9(MO ,WAG) ;Abur i(fl .May )Johnso n88 3(K) . BENINREPUBLIC :nea rAbome y(Feb. )Chevalie r2320 2(P) . NIGERIA: Kwara State: Ekeji-Ipetu For. Res. (fr. Dec.) Onochie FHI 5239 (K). Ogun State: Omo For. Res.,o n road to Itemi,2 2k mN W of Omo(fr . June)Gentr y & Pilz3271 3(MO) ;Eredo , Iraro Distr. (fl. May) Gbile & Latilo FHI 20908 (NY, WAG). Bendel State: between Sapoba and Benin City (fl. Mar.) Thompson 20 (K). Cross River State: Afi For. Res., on Kanyang- Katabanfootpat h(May )Latil oFH I3099 0(K) ;Oba n(fl. )Talbo t 1692(BM ,K ,Z) . CAMEROUN: Mamfe (fr. Nov.) Krukoff 81 (NY); Mt. Nlonako (fl. Dec.) Bamps 1568(BR , YA); Victoria (fl. Oct.) Winkler 478 (G, L, Z); Douala (fr. Jan.) Baldwin 14006 (K, MO); near Gba, 40 km NE of Linte (fl. Sept.) Letouzey 8018 (BR, K, P, WAG, YA);4 0 km Wo f Bcrtoua, 1-10 kmN o fMban g(fl . May)Bretele r294 5(WAG) ;Ayon g( = Long)R. ,betwee nZogel aan dMbomb a (fl.Apr. )Letouze y 1801(P ,YA) ;Lomi e(fr .Apr. ) Breteler 1270(K , LISC,P ,WAG , YA);Yaound e (fl.) Zenker &Staud t 530 (BM, BR, COI, K, M, NY, P, PRE, S, Z); ibid, (fl.) Zenker &Staud t 544(BM ,COI ,K , P,PRE ,S ,Z) ;Bity e R.(fl. ) Bates 1083(BM , BR, MO,Z) ;Bipind e( = Bipinddi) (fl. Apr.) Zenker 554(A , BR, C, G, GH, P, U, WAG); ibid, (fl.) Zenker 1552(BM , BP, BR,COI , E, G, HBG, K, L, M, MO, NY, P, S, W, WAG, Z, type of O. glandulosa); ibid, (fl.) Zenker 2208 (A, BM, BP, COI, E, G, HBG, K, L, M, MO, P, S, WAG, Z); ibid, (fl.) Zenker 3013 (A, BM, BP, BR, E,G , HBG, L, M, MO, P, S, W, WAG, Z);Efule n (= Efoulan) (fl. Oct.) Bates40 3(BM , E, G, K, Z, type of O.batesii)\ near Kribi (fr. Dec.) Krukoff 169 (MO, NY); Okpweng, km 40 road Djoum-Oveng (fl. Nov.) Mezili 57 (BR, P, WAG, YA); between Mabam and NgoTla, 2k m So fNgoTla ,i nth edirectio nLomie-Souank e(K ,P ,WAG ,YA) ;nea rMopwo ,k m2 2roa dYakadou - ma-Batouri (fl. June)Letouze y 5278(P ,YA) ;nea rMikel ,abou t km7 0roa d Yokadouma-Moloun- dou(fl. ,imm .fr .Nov. )D eKrui f78 7(WAG ,YA) . : Yalinga (fl., fr.) LeTest u 4177 (BM, BR, P, WAG); Boukoko (fl. Sept.)Tisseran t 184(BM ,BR ,K ,P) ;ibid .(fl .Aug. )Tisseran t 1072(BM ,BR ,K ,LISC ,P ,WAG) . EQUATORIALGUINEA :Beba ,alon groa dt oCampo-are a(fl .Nov. )Tessman n60 4(K) . GABON:Oye m(fl .Dec. )L eTest u941 7(BM ,P) ;Mvini ,betwee nOgoou e R.an dCamerou nborde r (fl. Aug.) Le Testu 9210 (BM, BR, LISC, P, WAG); Belinga (fr.) N. Halle 2861 (P); Makokou, Ipassa Plateau (fl. June) Farron 7546 (P); Sibang near Libreville (fl. Feb.) Klaine 2726 (A, BR, K, P); Madoucou (fl. June) Le Testu 7388 (BM, BR, LISC, P, WAG); Moucongo (fl. Oct.) Le Testu 6338(BM , BR, LISC,MO ,P ,WAG) ;Mbigo u (fl. May) LeTest u 8825(BM , BR, P,WAG) ; Tchibanga (fl. Nov.) Le Testu 1836 (BM, BR, K, LISC, MO, NY, P, WAG); Wounzi-Mambo

16 Agric. Univ. WageningenPapers 85-2 (1985) area(fl .Aug. )LeTest u209 3(BM ,BR ,K ,LISC ,P) . CONGO(-Brazzaville) : Kakamoeka (fl. Nov.) Bouquet 1942(P) ;Pointe-Noire , 5k mafte rborde r onroa dt oCabind a(imm .fr .Jan. )Farro n480 9(P) ;M'Bamo uIsl. ,Stanle yPoo l (fl. Nov.) F.Hall e (P). ANGOLA:Cuanz a Norte:Golung oAlto ,Calungul a(fl. , fr.)Gossweiler486 9(BM ,K) ;Golung o Alto, Queta Mts.(fr . Oct.)Welwitsc h595 8(BM ,COI ,K , LISU);betwee n Sangean d Luinha,nea r Granja de Sao Luiz (fl. Oct.) Gossweiler 4395 (BM, COI, K, LISC); Ambaca road (fl. Feb, fr. June)Welwitsc h595 7(BM ,COI ,G ,K ,LISU ,MO ,P ,type) . ZAIRE: Equateur: Boketa (fl., fr.Sept. )Evrar d 1785(BR) ;Dundusan a (fl. Sept.) Mortehan45 2 (BR); road Bofongi-Maringa R., Basankusa Terr. (fl. Sept.) Evrard 4911 (WAG, Z);Befale , Ifale R.(fr .Nov. ) Evrard292 0(BR) ;Eal a(fl . Feb.)Pynaer t 1091(BR) ;nea rMondomb e(fl .Nov. )Jesper - sen 12(BR) . Haut-Zai're: Bambesa (fl. Nov.) Gerard 2525 (BR, WAG); Epulu, near Mambasa (fl. Nov.) Hart34 2(BR , K);betwee n Irumuan dMambas e(fl . Oct.)Lebru n418 7(BR , EA,WAG) ; Yangambi (fl. Oct.) Louis 6428 (BM, BR, K, Z);ibid. , near Isalowe R. (fl., fr. Nov.) Louis 6512 (BM, BR, EA, K, P);Opal a (fl. Feb.) Louis 14145 (BR). Kivu: km 2 road Bitso-Gungu, Masisi Terr.(fl . May)Pierlo t 1982(BR ,WAG) ;Kaleh e(fr .Mar. )A .Leonar d331 8(BR ,WAG) . Bandun- du: between Kutu and Lukolela (fl. Nov.) Lebrun 6612 (BR, EA, WAG); Bokoro (fl. May)Jan s 841 (BR);Kiak a (fl. Nov.) Devred 968 (BR, K). Kasai Occidental: Bena Longo, MwekaTerr , (fr. Apr.) Liben278 5(BR) . Bas-Zaire: Luki,nea rKinkok o R. (fl. Oct.) Donis 2073(BR) ;Dond a II, Songolo Terr. (fl. Dec.) Compere 1065(BR , EA, K, PRE);M'vuaz i (fl. Nov.) Devred 382(BR , K).Kinshasa :Binza(fl .May )Pauwels5008(BR ,WAG) . BURUNDI:Bugarama ,Terr .Muramvy a(buds ,June )Lewall e599 5(BR ,K ,WAG) ;Kigwena ,Bur - uriTerr .(fl .Apr. )Lewall e665 1 (BR). UGANDA: Entebbe (fl. Nov.) Brown 353 (K); Kipayo (fl. May) Dummer 809 (K, MO, NBG, P,US) ;Mabir aF.R. ,nea rKiwal a(fl .Oct. )Dumme r298 8(BM ,K ,US) . : Western Province: Kungwe-Mahali Peninsula, Mpanda Distr. (fl. Sept.) R. M. Harley(EA,K).

No t es : 1.Man yauthor s(e.g .STAP F1902:222 ;HUTCHINSO N& DALZIE L 1931: 49;PICHON 1948b:212 ; 1950:141,pi . IX,fig. 48 ; 1954:12)conside r O.campanu- lataSchuman na sa synony mo fO. glabrata. Th etyp especime no fO. campanula- ta,Zenke r& Staud t 19,undoubtfull y belongst o Baissea. Adetaile d description and adistributio nma po fthi sBaissea campanulata (Schumann )D eKrui fcomb , nov. will be given by the present author in his forthcoming publication on Ba­ issea. 2. In Central Africa O.glabrata and O.pontyi may be confused, see note with O.pontyi.

2.Oncinoti sgracili sStap f 1894:124;Olive r 1894: pi.2346 ;Stap f 1902:223;1904 : 612; Hutchinson & Dalziel 1931: 49; Pichon 1954:28-31 ; 29, pi. II, F; 17,fig. l;Irvine 1961:629;Hube r 1963:80;Ada m 1975:959; 1161,pl.486. Fig.2 ; Map2 Type:Nigeria :Ogu nState :Illaro( = Ilaro),Mille n 106(K,holotype). Heterotypic synonyms: O.chlorogena Schumann 1900: 307; 1903: 320-321. Type:Nigeria : Lagos State:Ikorodu , Schlechter12996 (holotype not seen,des ­ troyedi nB ;lectotype :Z ;othe risotype sseen :BM ,BR ,G ,K ,L ,P ,PRE ,WAG) . O.thyrsiflora Schuman n ex Stapf 1904:612 : Pichon 1954: 31-32; 29, pi. II, G; 17,fig. 1 . Type: Cameroun: Bipinde( = Bipindi),Zenke r258 8(K ,holotype ; isotypes:BM ,E ,G ,HBG ,P ,W ,Z) .

Agric. Univ. IVageningenPapers 85-2 (1985) 17 <^l-

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frfs .vIS •-. < ». K&1 -• BS,,J > ftj 5 \ •> r

18 Agric. Univ. WageningenPapers 85-2 (1985) O.mitis Stapf 1914: 540-541. Type: Zaire: Haut-Zai're: Ituri: near Bulika, between Mawambi and Awakubi (= Avakubi), Mildbread 3217(holotyp e not seen),destroye di nB ;lectotype : K). O.malchairiDeWild.1915:104 ;1920:22 .Type :Za'ire : Equateur:nea rLikimi , Malchair33 3(BR ,holotype) .

Climbingshrub or liana, 1-20 mhig hclimbin gove r shrubsan d intrees , 5-30 mlon go rmore . Trunk 1-3 cmi ndiameter ; bark dark brown to greyish-brown, firstsmooth ,late r longitudinallyfissured, wit h largepal ebrow n lenticels;inne r bark brownish with rope-like fine pale straw-coloured fibres; wood brownish, rather soft. Branchesbrow n togrey ,sulcate ,wit h largebrow n lenticels;branch - lets medium green to brownish-green, sulcate, rusty brown-pubescent. Leaves: petiole (3-)9-20 mm long, densely covered with up to 1 mm long simple and - less often - branched hairs; along the adaxial side mostly in the upper half with 1-5 up to 0.7 mm long ovoid glands and near the base of the blade with at least 1, sometimes2 pair so ftriangula r glands,u pt o 1 mmlong ;blad eellipti c to obovate, 1.6-3 x as long aswide ,3-1 4 x 1.3-5.9cm , acuminate (orexcep ­ tionally emarginate) at the apex, cuneate or rounded at the base, sometimes undulate or recurved at the margin, papery to subcoriaceous, sparsely covered with up to 1 mm longsimpl e and- lessofte n - branched hairs,especiall y along thevein san dth emargin ,dar k greenbeneath ,glossy ,especiall ys oabove ;midri b pubescent,slightl yglabrescent ;o neac hsid e4-1 0secondar yveins ,ofte n reddish, especiallys oo nyoun gleaves ;tertiar yvenatio n ratherinconspicuous ,reticulate ; domatia absent orconsistin go fa dens e tuft ofu p to 1 mm longpal e to orange- brown simple hairs.Inflorescence (2—)3—7.5 x 1.5-3.5(-4.5)cm .Peduncle s and branchesmediu mt opal egree nwit ha pal ebrow nindumentum .Pedicel s2-3(-4 ) mm long, medium to pale green, with a pale brown indumentum. Bracts, and - if present - bracteoles, ovate to triangular or narrowly so,0.3-1. 6 x 0.3-0.6 mm, obtuse to acute at the apex, outside pale brown-pubescent. Sepalsbrigh t green to brownish-green, ovate to triangular, 1.2-3 x as long aswide ,0.9-2. 2 x 0.6-1.2mm , outside palebrown-pubescent . Corolla in themature bud 2-7.5 x aslon ga sth ecalyx ,5.3-9. 1m mlong ;tub eyello wt opal egree no rsometime s white, urceolate, widest below the middle and there 1.4-1.9 mm wide, 1-3.5 x as long as the calyx, 2.5-3.2 mm long, 1-1.2 mm in diameter at the base and at the apex; inside with tufts of hairs at 0.9-1.2 mm from the base; lobes yellowt opal egree no rsometime swhite ,narrowl yovat et onarrowl y triangular, 1-2.4 x aslongasthetube;(2.1-)2.6-6.9 x aslon ga swide ,3.2-6. 2 x 0.7-1.5 mm,outsid eglabrou s orpuberulous , usually onlys oa t thebase ;coron a yellow topal egreen ,ofte n later turningwhite ,0.3-0. 8m mlong ,pubescen t at thebase .

FIG. 2. Oncinotisgracilis Stapf: 1flowering. branch ,j x;2. part of branch, J x;3. leaf base with petiole from above, 4 x; 4. domatia, 4 x; 5. hairs of leaves, 25 x; 6. flower, 4 x; 7. opened flowershowin g 2 stamens and the pistil; the left stamen detached from the pistil; calyx, part of corolla, and 3 stamens removed, 8 x; 8. stamen, adaxial side, 8 x; 9. fruit, $ x; 10. seed I x. (1.Chevalie r20789 ;2,6-8 .Leeuwenber g 12141;3-5,9 .D eKrui f659 ;10 .Baldwi n13468) .

Agric. Univ. WageningenPapers 85-2 (1985) 19 Stamens inserted at 0.6-0.9 mm from the base of the tube; filaments 0.2-0.3 mmlong ;anther s9-1 2 x aslon ga sth efilaments , 1.8-2.8m mlong ;tail s0.2-0. 4 mmlong ;fertil eportio n0.9-1. 3m mlong .Pistil 2.5-3.2m mlong ,carpel s0.8-1. 2 x 0.5-0.9 x 0.2-0.4 mm, superior portion 0.3-0.7 mm long;disk : ring 0.1-0.3 mmhigh ,lobe s0.2-0. 4 x 0.1-0.3 mm;styl e0.1-0. 2m mlong ;pisti lhead :uppe r portion0.4-0. 6 x 0.2-0.4mm ,lowe rportio n0.6-1. 1 x 0.2-0.4mm ;appendice s 0.2-0.3 mm long. Each placenta with 20-40 ovules. Fruits often subtended by thepersisten t calyx,follicle s narrowly cylindrical, shaping an angleo f90-250° , 18-40 x as long as wide, 8.1-30 x 0.4-0.8 x 0.4-0.8 cm; exocarp up to 1 mm thick, at the outer surface sulcate, shortly rusty brown-pubescent, slightly glabrescent. Seedsu p to 30i n each follicle; coma 17-52m m long; grain 14-23 x 3-4 x 0.5-2 mm; testa smooth or minutely rugose; cotyledons 1.2-10.1 x 0.3-4.2mm ;rootle t0.7-4. 8m mlong .

MAP2 .Oncinotis gracilis Stap f

Distribution: Tropical Africa from Sierra Leone to Zaire in the east and toAngol ai nth esouth . Ecology: Mostly light or secondary deciduous forests, on sand and clay; alt.0-100 0m . A selection of the ca 100specimen s examined: SIERRA LEONE:Yoniban a(fr .Oct. )Thoma s412 8(K) . GuiNEA(-Conakry):nea rMacent a (fr. May) Lisowski 60799(POZG) ;Pela ,nea rN'Zeiekor e(fr . Sept.) Baldwin 13312(K , MO, NY, P, PRE, WAG);betwee n Berezia and Diorodougou (fl. Feb.) Chevalier2078 9(P ,WAG) .

20 Agric. Univ. WageningenPapers 85-2 (1985) LIBERIA:Javajai , BoporoDistr .(fr .Nov. ) Baldwin 10269A(K) ;Kondess u( = Kondezu), Boporo Distr. (imm. fr. Dec.) Baldwin 10683 (K); Nikabuzu (fl. Mar.) Bequaart 119 (K); Yekepa, near Mt.Nimb a(fr .July )Ada m 28780(MO ,PRE ,WAG) ;Sanokwel e( = Sanniquellie) (fr. Sept.)Bald ­ win953 7(K ,MO) ;Tappit a(fr .Aug. )Baldwi n907 4(K) . IVORY COAST:9 k mW o fSoubre ,alon groa d toNiamagu i (fl. May) Leeuwenberg 12141(WAG) ; 5 km N of Sassandra (fr. Dec.) Leeuwenberg 2257 (BR, C, COI, E, HBG, K, L, M, P, WAG); 6-7 km N of Rubino (imm. fr. June) Gamier PG/UB 19(K) ; Bouroukrou (Dec-Jan.) Chevalier 16661 (P); Zaranou (fl. Mar.) Chevalier 17643 (P); Adiopodoume (imm. fr. Oct.) De Kruif 659 (UCJ,WAG) ;ibid .(fr .Aug. )W .J .J .O .d eWild e64 6(BR , EA,K ,MO ,P ,PRE ,WAG ,Z) ;Angede - dou Forest (fl. Apr.) Geerling & Bokdam 2517 (BR, K, PRE, WAG); W of La Me R., about 20 kmN Eo fAbidja n(fl .May )Leeuwenber g416 9(BR ,HBG ,K ,MO ,P ,WAG) . GHANA: Near Kwapon, about 100 km WSW of Kumasi (fr. Dec.) Oldeman 734 (BR, K, MO, P,WAG) ; Bura R. For. Res. (buds) Andoh 3266(A , BM, BR, K);nea rAteik u (fr. Sept.) Krukoff 1949-15 (MO);Kumas i (fr. Oct.) Baldwin 13468 (K);Bobir a For. Res. (fr. Jan.) Enti Sp 555 (BR, MO,WAG) . TOGO:N of Kpalime,4 k mW o f Kpete-Tsiko,o n theroa d toNdigb eApedom e(fl . May)Hakki , Leuenberger& Schier s79 0(WAG) . NIGERIA: Kwara State: Lokoja (fl. Mar.).Oy o State:Gambar i(fl. ) Macgregor 583(K) ;Mam u For. Res., Ibadan Distr. (fl. Mar.) Keay FHI 22531 (K);Shash a For. Res., Ijebu Distr. (fl. Mar.) Richards 3190(BM , BR, COI, MO, NY). Ogun State: Ilaro For. Res.,abou t 12k mS Eo f Ilaro, Abeokuta Distr. (fl. May) Van Meer 750 (WAG); Illaro (= Ilaro) (fl. Jan.) Millen 106(K , type). Lagos State: Ikorodu (fl. Mar.) Schlechter 12996 (BM, BR, G, K, L, P, PRE, WAG, Z, type ofO. chlorogena). Bendel State:Sapoba , Eo fJamieso n R.(fr .Nov. ) KeayFH I2557 2(K) . Cross River State:Oba n(fl. )Talbo t 1675(BM,K,Z) . CAMEROUN:nea rTik o(Nov. ) Krukoff 72(MO) ;nea rNdokononoro , 15k mSS Wo fNdikinimek i (fr. Dec.) Letouzey 10816 (K, P, WAG, YA); Bipindi (fl.) Zenker 2588 (BM, E, G, HBG, K, P, W,Z ,typ eo fO. thyrsijlora); ibid, (fl.) Zenker310 2(BM , E,G , K, Z);Abuss a (fl. Apr.) Mildbread 9056 (K); near Dyebadop (fl. Apr.) Letouzey 3954 (P, WAG, YA); between Gribe and Song, 65 kmSS Wo fYokadoum a(fl . Mar.)Letouze y 12157(BR ,K ,P ,WAG ,YA) . CENTRAL AFRICAN REPUBLIC: La Maboke on Mbaiki-Boda road (fr. Dec). Badre 304(P) ;Bou - koko (fr. Mar.) Tisserant 788 (BM, BR, P); ibid. (fl. Mar.) Tisserant 2484 (BM, BR, P, WAG); Yalinga(fl .Apr. )L eTest u468 1(BM ,BR ,LISC ,MO ,P) . ZAIRE:Equateur : Boketa (imm.fr. ) Evrard 1296(BR);nea rLikim i(fl . Apr.)Malchair33 3(BR , type of/), malchairi). Haut-Zai're: near Bulika, between Mawambi and Awakubi (= Avakubi), IturiTerr .(fl . Apr.)Mildbrae d 3217(K , typeo fO. mitis). Kivu :Musenge ,WalikaleTerr .(fl . Dec.) A. Leonard 2152 (BR, P, WAG);Turole , Bunyakiri, Kalehe Terr. (fl. Jan.) Gutzwiller 2525 (BR, WAG). ANGOLA:sin .loc .(fl. )Gossweile rreed . 1906(BM) .

Note: Although in Central Africa O. gracilis and O.hirta sometimesclosel y resemble each other the two speciesca n always be readily distinguished by the presence of variously branched hairs on the leaves of O.hirta (se e fig. 2 and 3).

3. Oncinotis hirta Oliver 1877: 25, pi. 1232; Hiern 1898: 674; Radlkofer 1883: 404-405;Schuman n 1895a: 179; Stapf 1902:223; 1904: 612;DeWildema n 1932: 420(a sO. picta); Picho n 1954:32-34;17 fig., 1 . Fig.3 ; Map3 Type: Congo(-Brazzaville): Loango near Makunga (= Makongo), Soyaux 147(K ,holotype ;isotypes : Bp,K ,M ,W) . Heterotypic synonym:Motandra wehvitschiana Baillon 1888:760 ;Schuman n 1895a: 164.Type :Angola : Cuanza Norte: Golungo Alto,betwee n LuizSimoe s

Agric. Univ. IVageningenPapers 85-2 (1985) 21 « \'l ^1 % /I MX J\ ' K-i\'H'm ¥*&££' 't^tSk BIL'J JjJWJnt^fHH^

':

22 Agric.Univ. WageningenPapers 85-2 (1985) and Camilungo,Welwitsc h 5956p.p .Apri l &Ma y 1855(P ,holotype ;isotypes : BM,BR ,C ,COI ,G ,K ,MO) .

Climbingshrub o rliana, 3-25m hig hclimbin gove rshrub san di ntrees . Trunk 1-6 cmi n diameter; bark greyish-brown, more or lessrough . Branches greyish- brown,sulcate ,wit hman ylarg epal ebrow nlenticels ; branchletssulcate ,densel y reddish brown-pubescent. Leaves: petiole4—12(—22 )m mlong ,ver ydensel ycov ­ ered with variously branched hairs, along the adaxial side with 1-15 up to 1 mmlon gtriangula r glandsan d near thebas eo fth eblad ewit h 1-8, mostlyonl y 2 triangular glands up to 1m m long; blade elliptic to obovate, 1.8-3.1 x as long as wide, 4-13.4 x 2-6.8 cm, acuminate (or exceptionally emarginate) at the apex, rounded or cuneate at the base, sometimes undulate or recurved at themargin ,papery ,dar k greenabove ,mediu m toyellowish-gree n beneath,cov ­ ered with variously branched hairs, most densely so along the veins and the margin; midrib pubescent; on each side 5-9 secondary veins; tertiary venation ratherinconspicuous ,reticulate ;domati a absento rver yinconspicuous ,consist ­ ing of some short simple or variously branched hairs. Inflorescence 3.1-10.7 x 1-5.5 cm.Peduncle san d brancheswit h aver ydens erust y brown tomentum. Pedicels 1-2.5 mm long, with a dense rusty brown tomentum. Bracts, and - ifpresent-bracteoles, ovatet otriangular , 1-1.4 x 0.2-0.6mm ,obtus e toacut e atth eapex ,outsid erust ybrown-pubescent .Sepals rust ybrown ,ovat eo rbroad ­ ly so, 0.9-2.6 x as long as wide, 1.2-2.6 x 0.7-1.9 mm, outside with a very dense rusty brown tomentum. Corolla in the mature bud 2-3 x as long as the calyx,4.1-5. 9 mm long;tub eyello w togreenish-yellow , urceolate,wides t in the middle, 1-1.6 x as long as the calyx, 2.7-3 mm long, 1.3-1.7m m in diameter in the middle, 0.7-0.9 mm at the base and 1.1-1.3m m at the apex; inside with tufts ofhair sa t0.7-0. 9m mfro m thebase ;lobe syello wt ogreenish-yellow ,ovat e to triangular, 0.7-1.1 x aslon g asth e tube, 1.9-3.1 x aslon g aswide ,outsid e densely pubescent, often with glabrous patches,2.3-2. 8 x 0.8-1.2mm ;coron a firstyello w to greenish-yellow, often later turning white,0.2-0. 5m m long,gla ­ brous or only at the base puberulous. Stamens inserted at 0.6-0.8 mm from the base of the tube; filaments 0.2-0.3 mm long; anthers 8-10 x as long as the filaments, 1.7-2.1 mm long; tails 0.3-0.4 mm long; fertile portion 0.7-0.8 mm long. Pistil 1.9-2.5 mm long, carpels 0.7-1.1 x 0.3-0.6 x 0.2-0.4 mm, superior portion 0.4-0.6 mm long; disk: ring 0.1-0.3 mm high, lobes 0.1-0.3 x 0.1-0.3 mm, style 0.1-0.2 mm long; pistil head: upper portion 0.2-0.4 x 0.2-0.4mm ,lowe rportio n 0.5-0.8 x 0.2-0.4mm ;appendice s0.2-0. 5m mlong . Eachplacent awit h 15-30ovules .Fruits ofte n subtended byth epersisten tcalyx , narrowly cylindrical, shaping an angle of 150-250°, (12-)17-4 5 x as long as

FIG. 3. Oncinotis hirta Oliver: 1. flowering branch, - x; 2. part of branch, j x;3, midrib from beneath, 4 x; 4. hairs of leaves, 25 x; 5. leaf base with petiole from above, 4 x; 6. flower, 6 x; 7. opened flower showing 2 stamens and the pistil; the left stamen detached from the pistil; calyx, part of corolla, and 3 stamens removed, 12 x; 8. stamen, adaxial side, 12 x; 9. fruit, $ x; 10.seed,$ x .(1,3-8.Gerard5497;2.Jespersen29;9-10.Gerard2471) .

Agric. Univ. WageningenPapers 85-2 (1985) 23 MAP3 .Oncinotis hirta Olive r

wide,6.3-2 4 x 0.4-1 x 0.4-1cm ;exocar pu pt o 1 mmthick ,a tth eoute r surface sulcate and covered with an up to 2.5m m thick, deciduous,dens e rusty brown or grey tomentum. Seeds up to 25i n each follicle; coma 21-45 mm long;grai n 9.5-19 x 2-4 x 0.5-2 mm; testa smooth or minutely rugose; cotyledons 3.9- 12.2 x 1.4-3.7mm ;rootle t2.3-4. 8m mlong .

Distribution:Centra l Africa. Ecology: Mostly light or secondary deciduous forests or gallery forests; alt. 0-1200m .

A selection of the about 80specimen s examined: CAMEROUN:Mbanda ,o n Botmakak-Dibangroa dthroug hMangeund a IIan dDigomb i(fr . Nov.) CharlesA4 9(P) ; 5k mE o fGrib i(fl .May )Letouze y518 0(P ,WAG ,YA) . CENTRALAFRICA N REPUBLIC:Boukok o(fr .Nov. )Tisseran t224 6(BM ,BR ,LISC ,P) . GABON: Lastoursville (fl. Nov.) LeTest u 7626 (BM, BR, P);ibid . (fl. May) LeTest u 7340(BM , BR, LISC, P, WAG); Tchibanga (fl. Nov.) Le Testu 1255 (BM, BR, GH, K, P); ibid. (fl. Nov.) LeTest u 1470 (A, BM, E, EA, LISC, NY, P);ibid . (fl. Nov.) LeTest u 1857 (A, BM, BR, LISC, P). CoNGo(-Brazzaville): Loango near Makunga (= Makongo) (fl. Nov.) Soyaux 147 (BP, K, M, W);Linzol anea rBrazzavill e(fl. ,fr .May )Koechli n 1119(P) . ZAIRE: Equateur: Boketa (fl., fr. Apr.) Evrard 632 (BR);Dundusan a (fl. June) De Giorgi 1043 (BR);Befal e (fr. Dec.) Evrard311 3(BR , K);nea rMondomb e(fr . Nov.) Jespersen 29(BR) . Haut- Za'ire:nea r Mobwasa (fl. Dec.) Mortehan 759 (BR); Barumbu(buds , May) Goossens 2858(BR) ; Esabo Isl. near Basoko (fl. June) Germain 4930 (BM, M, P, WAG); 25 km NE of Yambao (= Yambauw) (fl. June) Louis 15267 (BM, BR, EA, Fl, K); Yangambi (fl. July) A. Leonard 1032 (BR, K, L, M, W);ibid. , Mbutu Valley (fl., fr. Nov.) Louis 6805 (BR, EA, Fl, K, NY, P, PRE, WAG); Batite (Zobia) fr. July) Gerard 4022 (BR, WAG); Bambesa (fl. Apr.) Gerard 5497 (BR, EA, WAG); Foki (fl. June) Claessens 1024 (BR). Kivu: between and Katako Kombe(Maniema ) (fl. Aug.)Lebru n606 6(BR , EA,WAG) .Bas-Zaire : Luki(fl . Dec.)Toussaint8 6(BR , EA,WAG) ; Songololo Terr. (fl. Nov.) Compere 925 (BR, K); M'Vuazi, Kolo Forest (fl. Sept.) Devred 773

24 Agric. Univ. WageningenPapers 85-2 (1985) (BR, K);Kisant u(fr .June )Gille t 2216(BR) . Kinshasa: Mabana, MalukuTerr . (11.Nov. ) Breyne 992(BR) . UGANDA: Kitabe (= Katibi) near Entebbe (fl., imm. fr.June-July ) Chandler 1270(BR , EA,K) ; KipayoFores t(fl. ,fr .Dec. )Dumme r139 2(BM ,K ,P , US). ANGOLA: Cabinda : BucoZa u(fr . Aug.) Gossweiler 6551 (BM, COI, LISJC, LISU);alon gChi - luango R. (= Chiloango R.) (fr. May) Gossweiler 8040 (BM, COI, K, LISU). Cuanza Norte: GolungoAlto ,betwee n LuizSimoesand Camilungo(fl. Apr-May) Welwitsch 5956p.p. (BM, BR, C, COI, G, K, MO, P);Golung o Alto, Quilombo Mts. (imm. fr. Dec.) Welwitsch 5956 p.p. (BM, LISU); Golungo Alto, Granja de Sao Luiz (fl. Dec.) Gossweiler 4445 (BM, BR, COI, K); ibid, (fl.Dec. )Gossweile r478 2(BM ,BR ,C ,COI ,K ,S) .

No t e :O. gracilis an dO. hirta ma yb econfused , seenot eunde rO. gracilis.

4. Oncinotis nitida Benth. 1849: 451-452; Walpers 1852-1853: 44: Schumann 1895b: 179;Stap f 1902:221 ; 1904:612 ;Hutchinso n &Dalzie l 1931:49 ;Picho n 1954: 17-19; 13,pi . I, E-F; 17,fig. 1 ;Irvin e 1961:629 ;Hube r 1963:80 ;Berhau t 1971:410-411. Fig.4; Map4 Type:Sierr aLeone :sin . loc,Voge l6 3(K ,holotype) .

Liana,0.5-2 0 m high climbing over shrubs and in trees. Trunk 0.5-3.5 cm indiameter . Branchesgreyish-brown ,first smooth , later longitudinally fissured andwit hlarg eorange-brow n lenticels;inne rbar kgre yt opal ebrown ,wit hman y rope-like fine fibres; wood creamy; branchlets pale brown to greenish-brown, smootht ofaintl ysulcat ewit horange-brow n lenticels,glabrou s(o rexceptionall y sparsely pubescent). Leaves: petiole 4-16 mm long, glabrous (or exceptionally sparsely pubescent), along the adaxial side with 1-3 clusters of 2-6 triangular, up to 1 mm long glands,on e of which usually near the base of the blade; blade elliptict oobovat eo rles softe n narrowlyso , 1.4-3.6 x aslon ga swide ,3.3-11. 5 x 1.4-5.6 cm, acuminate (or exceptionally emarginate) at the apex, cuneate at the base, papery, glabrous, dark to medium green above, paler beneath, glossy;midri b pale brown above,mediu m to reddish-brown beneath, glabrous (orexceptionall y sparselypubescent) ;o neac h side 13-25 secondary veins, often reddish-brown beneath; tertiary venation rather conspicuous, scalariform; do- matia sometimes absent, usually consisting of pits without a ciliate margin.In­ florescence 2.5-10.5 x 1-6 cm. Peduncle glabrous or puberulous, glabrescent; branches rusty brown-pubescent, glabrescent. Bracts, and - if present - brac- teoles,triangula r toovate , 1.6-2.2 x 0.6-1.2mm ,subacut e at theapex ,outsid e rusty brown-pubescent, inside at the base sometimes with 1-2 colleters,ellipti c toovat eo rnarrowl yso .Sepals yellowish-green ,ovat et otriangular ,ofte n broad­ ly so, 1.1-2.7 x as long as wide, 2.1-3.8 x 1.2-2.5mm , outside rusty brown- pubescent,ofte n withglabrou spatches ,insid ea tth ebas e0- 3colleter spe rsepal , situated at the margin;colleter s elliptic to ovate,o r narrowly so. Corolla in the mature bud 1.9-3.9 x aslon g as thecalyx , 5.8-9 mm long;tub e yellow to pale yellow,almos tbroadl ycylindrical ,widenin gsomewha ttoward sth emiddle ,0.7 - 1.7 x aslon ga sth ecalyx ,2.9-4. 3m mlong , 1.4-2.1m mi ndiameter ;wit h tufts of hairs inside at 0.6-1.2m m from the base;lobe s yellow to pale yellow, ovate

Agric. Univ. WageningenPapers85-2 (1985) 25 26 Agric. Univ. WageningenPapers 85-2 (1985) to triangular, or narrowly so,0.7-1. 1 x aslon g as the tube, 2.2-4.1 x as long as wide, outside glabrous or puberulous, often with glabrous patches, 2.1-5.2 x 1.2-2.1mm ;coron a white to paleyellow , 1-1.6 mm long,a t thebas epubes ­ centt opilose .Stamens inserte d at0.7- 1 mmfro m thebas eo fth etube ; filaments 0.2-0.3 mm long; anthers 7-11 x as long as the filaments, 2.1-2.3 mm long, tails 0.3-0.5m m long; fertile portion 0.9-1.2m m long. Pistil2.5-3. 2 mm long; carpels 0.9-1.4 x 0.4-0.8 x 0.2-0.5 mm, superior portion 0.7-0.9 mm long; disk:rin g0.1-0. 6m mhigh ,lobe s0.1-0. 7 x 0.3-0.7mm ;styl e0.2-0. 4m mlong ; pistil head:uppe r portion:0.2-0. 5 x 0.2-0.4mm ,lowe rportio n 0.5-0.7 x 0.2- 0.4 mm;appendice s 0.4-0.5m m long. Each placenta with 35-60 ovules. Fruits often subtended by the persistent calyx; follicles narrowly cylindrical, making an angle of 130-160°, 21-28 x as long as wide, 12-28 x 0.6-1 x 0.6-1 cm; exocarp up to 1m m thick, at the outer surface smooth and glabrous. Seeds up to 40 in each follicle; coma 30-60 mm long; grain 8-21 x 2-45 x 0.5-2 mm;test arugos eo ronl yminutel yso ;cotyledon s5.8-12. 3 x 1.8-3.2mm ;rootle t 2.3-4.6m mlong .

Distribution: WestAfric a from Senegalt oWester nNigeria . Ecology: Riverine forests and secondary forests, especially on riverbanks, onsan dan dclay ;alt .0-10 0m .

A selection of the ca 50 specimens examined: SENEGAL:Sangelka m(fl .Sept. )Bcrhau t540 6(P) . GUINEA-BISSAU: Empada (fr. Dec.) Espirito Santo 2337 (COI, K, LISC, MO, WAG); Catio (fl. Aug.)Espirit oSant o217 4(BR ,COI ,K ,LISC , LISJC,MO ,P ,WAG) .

MAP4 .Oncinotisnitida Benth .

FIG. 4. Oncinotis niticla Benth.: 1flowering. beneath , J x; 2. part of branch,jx;3 . leaf basewit h petiole from above, 8 x; 4. domatia, 4 x; 5. flower, 6 x; 6. opened flower showing 2 stamens andth epistil ; thelef t stamendetache d fromth epistil ;calyx ,par to fcorolla ,an d3 stamensremoved , 8 x; 7. stamen, adaxial side, 12 x; 8. stamen, adaxial side, 12 x; 9. transverse section of ovary, 6 x; 10. pistil with longitudinal section of ovary, 8 x; 11. fruit, $ x; 12. seed, $ x; 13.embry o 2x.(l,3-10.DeKruif701;2,ll.DeKruif697;12.J.B.Hall2171).

Agric. Univ. IVageningenPapers 85-2 (1985) 27 28 Agric. Univ. WageningenPapers 85-2 (1985) GuiNEA(-Conakry):Conakr y(imm .fr .Dec. )Maclau d 176(P) . SIERRA LEONE:Waterlo o(fl .July )Lane-Pool e30 0(K ,MO) ;sin .loc .(fl .June )Voge l6 3(K ,type) . LIBERIA:Greenville ,Sino eCount y(fr. )Si mann o 1904(K) . IVORY COAST: between Tai andlef t bank Cavally R. (Nov.) De Kruif 719 (UCJ,WAG) ;9 k m W of Soubre, along road to Niamagui (fr. May) Leeuwenberg 12140(WAG) ; Soubre (fl. June) Chevalier 19128 (P);2 k mW o f Beyo (km5 6 road Sassandra-Gagnoa),right ban k Davo R.(fl. , fr. Nov.) De Kruif 697 (UCJ,WAG) ; km 17roa d Sassandra-Gagnoa, left bank Davo R. (imm. fr. Nov.) DeKrui f 700& 70 1 (UCJ, WAG);k m 15roa d Sassandra-Gagnoa, left borderSassandr a R. (imm. fr.Nov. )D e Kruif 698 (UCJ, WAG);5 0k mW o f Dabou, along road to Grand-Lahou (fl. July) Versteegh &De nOute r 564(U ,WAG) ; Banco Forest (Oct.) DeKrui f 662(UCJ ,WAG) ; bank of Comoe R., opposite Grand Bassam (fl. July) W. J. J. O. de Wilde 479 (BR, EA, K, P, PRE,WAG ,Z) . GHANA: Dabere near Elmina(fr .Jan. )Hal l 2172(K) ;Asaf o roadjunctio n on Cape Coast road (fl.Oct. )Morto nG C782 3(K ,WAG) . TOGO:nea rLom e(fl. )Warneck e45 0(BM ,BR ,E ,EA,G ,K ,L ,M) . BENIN REPUBLIC:Porto-Nov o(fr .Jan. )Chevalie r2280 4(P ,WAG) . NIGERIA:Oy o State:Ibadan(fr .Oct. ) Baldwin 13677(K,MO ,WAG) ;Babalolo(fr . Feb.)Verge r 804(P).Lago s State:Lagos(fl .June)Dalzie l 1347(C,E,K,MO,PRE).

Note: Especiallyth especimen scollecte d byBerhau ti nSangelka mi nSenega l aree hairy .

5.Oncinoti sponty iDubar d 1911:201-202 ; 1912:514-515;Picho n 1954:26-28. Fig.5 ; Map5 ;Phot . 1 Type:Ghana :Amnafo ,Girau ds.n .(P ,holotype) . Heterotypic synonyms: O.obovata DeWild . 1915: 103;1920 : 22-23. Type: Zaire: Kasai: Sankuru Forest, Lujas.n. March 1907(BR , lectotype; isotype, G). O.pontyi var .breviloba Picho n 1954:28;29 ,pi .II ,D-E ; 17fig., 1 .Type : Zaire: Haut-Zaire:k m 14roa d Yangambi-Weko, Louis 16055(P ,lectotype ;isotypes : BR,C ,K) .

Liana,5-5 0m hig h climbing in trees. Trunk 1-15c mi n diameter. Branches greyish-t oblack-brown ,a firstt smooth ,late rcorrugate d andwit hman yorange - to grey-brown lenticels; inner bark grey to pale brown, with many rope-like finefibres ; wood pale yellow; branchlets brownish-grey to pale grey, smooth tofaintl y sulcate,wit hman yorange -t ogrey-brow nlenticels ,glabrou so rsparse ­ ly pubescent. Leaves: petiole 7-22m mlong , glabrous or rarely slightly pubes­ cent,glabrescent ,alon gth eadaxia lsid ewit hu pt o 1 mmlon gtriangula rglands , often 1-3 pairs;blad e obovate or- lessofte n - broadly ornarrowl y so, 1.5-3(- 4.1) x aslon g aswide ,4-18. 1 x 1.4-10.1 cm,acuminat e or often emarginate at theapex ,cuneat e atth ebase ,sometime s undulate orrecurve d at themargin ,

FIG. 5. Oncinotis pontyi Dubard: 1.flowering branch , j x;2. part of branch, $ x; 3. leaf base withpetiol e from above,4 x; 4.domatia ,4 x; 5flower,. 6 x; 6.opene dflower showin g2 stamen s and thepistil ;th elef t stamen detached from thepistil , 8 x; 7.stamen , adaxial side, 12 x; 8.fruit , i x; 9. seed, j x. (1. Leeuwenberg 10636; 2-4. De Kruif 666; 5-7. De Kruif 723; 8. De Kruif 684;9 .Gerar d5298) .

Agric. Univ. WageningenPapers 85-2 (1985) 29 PHOT, I. Oncinotispontyi Dubard(D eKrui f684 ,phot .Lccuwenbcrg) . subcoriaceous orcoriaceous ,glabrou s or rarelypuberulou s onth emidrib ,dar k to medium green and glossy above, dull and distinctly paler beneath; on each side3-1 0 secondary veins;tertiar y venation inconspicuous;domati a sometimes absent, usually consisting of pits with a ciliate margin. Inflorescences 3-11.5 x 1.5-8.5cm . Peduncle and branches rusty brown-pubescent. Pedicels 2-3.5 mm long, rusty brown-puberulous. Bracts, and - if present - bracteoles, ovate to triangular, 0.6-1.6 x 0.2-0.8 mm, acute at the apex, outside rusty brown- pubescent or-puberulous .Sepals brownish-green , broadly ovate tobroadl y tri­ angular, 1-2 x as long as wide, 0.8-2.1 x 0.6-1.2 mm, outside rusty brown- puberulous. Corolla in the mature and 5-8.8 x as long as the calyx, 4.5-9.8 mm long; tube yellowish- or whitish-green, cylindrical, somewhat narrowing towards the base and the apex, 1.6-3.1 x as long as the calyx, 2.2-3.8 mm long, 1.4-2 mm in diameter; with tufts of hairs inside at 0.7-1.1 mm from the base, lobes yellowish- or whitish-green, narrowly ovate, 0.8-1.7 x as long as the tube, 1.5-4.7 x as long as wide, 1.7-5.8 x 1-1.7 mm, outside puberulous orglabrous ;coron ayellowish -o rwhitish-green ,late rturnin gwhite ,0.4-0. 8m m long, pubescent at the base or glabrous. Stamens inserted at 0.6-1 mm from the base of the tube; filaments 0.2-0.3 mm long; anthers 6-11 x as long as the filaments, 1.8-2.1 mm long; tails 0.2-0.3 mm long; fertile portion 0.7-1.2 mmlong .Pistil2-2.$ m mlong ;carpel s0.8-1. 2 x 0.4-0.6 x 0.2-0.4mm ,superi ­ or portion 0.6-1 mm long;disk : ring0.1-0. 3 mm high,lobe s0.1-0. 3 x 0.1-0.3 mm; style 0.1-0.2 mm long; pistil head: upper portion 0.2-0.4 x 0.2-0.4 mm,

30 Agric. Univ. WageningenPapers 85-2 (1985) lowerportio n0.5-0. 9 x 0.2-0.5mm ;appendice s0.2-0. 5m mlong .Eac hplacen ­ tawit h30-5 0ovules .Fruits: follicles narrowlycylindrical ,ofte n faintly recurved or upcurved, making an angle of 140-220°, 16-40 x as long as wide, 12-28.5 x 0.4-2.6 x 0.4-2.6 cm; exocarp up to 2m m thick, mostly very hard, at the outer surface slightly sulcate, greyish- to rusty brown-pubescent, glabrescent. Seedsu p to4 0i neac h follicle; coma 45-93m m long;grai n 16-27 x 3-5.8 mm; testa rugose, often only narrowly so;cotyledon s 12-24 x 2.5-5.6 mm; rootlet 4.3-5.5m mlong .

10 0 MAP5 .Oncinotis pontyi Dubar d

Distribution:Tropica lAfric a from IvoryCoas tt oUganda . Ecology: Rain forests, swamp forests, secondary deciduous forests and gal­ leryforests ;alt .0-120 0m .

Aselectio n of theca 100specimen s examined: GuiNEA(-Conakry): 5k mS o fMacent a(fl . Mar.)Lisowsk i5518 5(BR) . IVORY COAST: km 30 road Tai-Guiglo (fl., fr. Nov.) De Kruif 723 (UCJ, WAG); km 24 road Sassandra-Monogaga (imm.fr .Nov. ) DeKrui f69 6(UCJ ,WAG) ; 2k mS o fAdzop e(Dec. ) Leeuw- enberg 10728(WAG) ;k m 13 road Divo-Tassale(fl . Oct.) De Kruif66 6(UCJ , WAG);Bouroukro u (fr. Dec-Jan.) Chevalier 16531 (P);k m 22 road Abengourou-Akoupe, about 3k m N ofAniassu e (imm. fr. Oct.) De Kruif 684 (UCJ, WAG);Adiopodoum e (fr. Aug.) Versteegh &De n Outer 757 (BR, U, WAG); road Abidjan-Aboisso, 47 km after Comoe-bridge (fl., fr. Nov.) Breteler 5914 (WAG). GHANA: Sunyani, Asukese For. Res. (imm. fr. Apr.) Enti FE 1407 (MO); Bobiri For. Res., E of Kumasi, NE of Kubeasi (fr. Feb.) Leeuwenberg 11968 (WAG); Subri R. For. Res. (fl. Oct.) Hall & Abbiw GC 44578 (K, MO, WAG); Esen Epam For. Res., Oda road (fr. Nov.) Enti Sp 424(BR , K, MO);Atew a Range For. Res.(fr . June) Hall &Loc k 46758 (K, MO,WAG) ;Amnaf o (fl.)Giraud Apr. 1910(P ,type) . NIGERIA: Oyo State: Ibadan (Feb.) Foster 158 (K). Ogun State: near Oloji (June) Gentry & Pilz 32745 (MO); ibid. (June) Gentry &Pil z 32746 (MO). Bendel State: Benin City, Unwin 15152(P) ;Ogod o( = Ogo),Asab aDistr. ,Unwi nreed .5 Ma y 1906(K) .

Agric. Univ. IVageningenPapers 85-2 (1985) 31 32 Agric. Univ. WageningenPapers 85-2 (1985) CAMEROUN: Victoria (fr. Dec.) Maitland 909 (K); near Tiko (fr. Nov.) Krukoff 71 (MO); SW of Kompina (fl. Nov.) Leeuwenberg 10636(WAG) ;8 k mW o f Masok (fl., fr. Mar.) Leeuwenberg 5199 (BR, C, EA, K, LISC, P, WAG, YA); Bipindi (fr.) Zenker s.n. (F); M'Balmayo (fl. Dec.) De Wit 9417 (WAG);nea rZende , 10k m SEo f Nguelemendouka (Nov.) Breteler 2091 (P, WAG, YA); Bitye (fl. Nov.) Bates 1502(BM , MO, NY, Z);k m 125 road Yaounde-Dengdeng, nearcon ­ fluence of Lorn (Sanaga) R. and Djerem R. (fr., imm. fr. Feb.) Mildbraed 8293 (K); 8 km N of Lomie, near Mintoum, km 119roa d Abong Mbang-Lomie (Dec.) De Kruif 911 (WAG, YA); 15 km E of Dimako, halfway Bertoua-Doume (fl. June) Leeuwenberg 5827 (BR, C, EA, K, LISC, P,PRE ,WAG , YA);abou t 30k mN W of Moloundou (buds,imm . fr. Dec.) De Kruif 882(WAG , YA). CENTRAL AFRICAN REPUBLIC: Lobaye Forest (fr. June) Barbier 585 (MPU); Boukoko (fl. Oct.) Tisserant 376(BM , BR, P);ibid , (fl., fr. Nov.)Tisseran t 457(BM , BR, P); ibid. (fl. Dec.)Tisseran t 2328(BM ,BR ,LISC ,P ,WAG) . GABON:M'Pass aFiel dStation ,nea rMakoko ualon gth eIvind o R.(fr .July )Gentr y 33123(MO) ; nearLastoursvill e(fl .May )L eTest u735 0(BM ,BR ,LISC ,MO ,P ,WAG) . ZAIRE: Equateur: Eala (fr. May) M. D. J. Laurent 888 (BR); Basankusu-Bokakata road (fl. Sept.) Evrard 4807 (BR, EA, K); Libenge-moke (Gemena) (fr.) Evrard 1354 (BR); Bongangatua (Bongabo)(fl. , fr.June )Evrar d 1144(BR) ;nea rMondomb e(fr. )Jesperse nNov . 1907(BR ,paratyp e of O.obovata). Haut-Zaire: Yahila (Bamboli), left bank of Zaire R. (fl. Sept.);Loui s 11210(BR , Fl, K); km 14 road Yangambi-Weko (fl., fr. Sept.) Louis 16055 (BR, C, K, P, type of O. pontyi var.breviloba); Bambesa(fr .Aug. ) Gerard 5298(BR , WAG);Epulu ,nea rMambas a (fl. Dec.)Har t 350 (BR, K). Kasai: Sankuru Forest (fl., fr.) Luja Mar. 1907 (BR, G, lectotype of O. obovata). Kivu: near Kaseke, km 50 road Loashi-Mutongo, Walikale Terr. (imm. fr. Mar.) Pierlot 1775 (BR). :Lott iForest ,Tori tDistr .(buds ,fr .June )Andrew s 1732(Fl ,K ,NY) . UGANDA: Budongo Forest (fl., fr. June) Eggeling 3035 (BR, K, P);Mulange , Mabira For. Res. (buds,fr .Nov. )Dumme r434 8(BM ,K ,P ,US) . Note: Althoughi nCentra lAfric aO. pontyi an dO. glabrata closel yresembl e each other the two species can always be clearly distinguished as is shown in the key. The present author does not maintain var. breviloba asi t grades into thetyp evariety .

6. Oncinotis tenuiloba Stapf 1898: 307; De Wildeman &T . Durand 1899: 41; 1901a: 131, pi. 76; 1901b: 156;Stap f 1902:222-223 ; Pichon 1954:22-24 ;21 , fig. 2. Fig.6 ; Map6 Type:Zaire : Equateur:nea rLukas a( = Likasa),Dewevr e88 3(BR ,holotype) . Heterotypic synonyms: O.inandensis J. M. Wood &M . Evans 1899a:254 ; 1899b: 50-51, pi. 61;Stap f 1907b: 512; Pichon 1954:24-26 ; 29, pi. II, A;21 , fig.2;Codd1963:288-289 ;Palme r& Pitma n 1972:1927-1928;Coate sPalgrave s 1977: 796. Type: South Africa: Natal: Inanda, Wood 1009 (K, lectotype; isotypes: BM,MO ,P) .Homotypi csynonym :O. natalensis Stap f1907a :52 . Motandra erlangeri Schumann 1903:318 ; Stapf 1904: 613. Type: Ethiopia: Arusi: near Lake Awasa, Ellenbeck 1710 (holotype not seen, destroyed in B; lectotype:K) .

FIG. 6. Oncinotis tenuiloba Stapf: 1. flowering branch, J xf 2. part of branch, i x; 3. leaf base withpetiol e from above,4 x; 4.domatia ,4 x; 5.flower , 4 x; 6.opene d flower showing 2stamen s and the pistil; the left stamen detached from the pistil, 8 x; 7. stamen, adaxial side, 8 x; 8. fruit, $ x; 9. seed,f x. (1,3-7 . Brenan & Greenway 8103;2 .G . R. Williams 576;8 . Drummond 10187; 9.Wil d2175) .

Agric. Univ. IVageningenPapers 85-2 (1985) 33 O.chirindica S. Moore 1911: 141-142. Type: : Chirinda Forest, Swynnerton8 7(BM ,holotype ;isotypes : K,SRGH ,Z ;photograph :MO) .

Climbing shrubo r liana,1.8-3 0 m high climbing over shrubs and in trees. Trunku pt o2 c mi ndiamete r ormore ;bar k lightochraceous ,thic kcorky ;inne r bark withrope-lik efibres .Woo d creamy. Branchespal et odar k brown,slightl y sulcate, with many whitish lenticels; branchlets brownish- to greyish-green, slightlysulcate ,puberulou s orpubescent , rarelydensel yso .Leaves: petiole5-1 2 mm long, puberulous or pubescent, rarely densely so, with 2 pairs of oblong to triangular glands along the adaxial side, up to about 1m m long, usually 1pai r near theproxima l end ofth emidrib ;blad eobovat e or narrowly so, 2-4.1 x aslon ga swide ,(1.8—)4.6—14. 2 x 1.2-5.2cm ,acuminat eo rrarel yemarginat e at theapex ,cuneat e at the base,membranaceou s to papery, glabrous, or rarely pubescent, dark to medium green above, slightly paler beneath, slightly glossy; midribglabrous ,puberulous , or rarely denselypubescent ; oneac h side2- 7sec ­ ondary veins,ofte n purplish, glabrous,puberulou s or rarelydensel y pubescent; tertiary venation rather conspicuous, scalariform; domatia consisting of pits with a dense tuft of hispid hairs along the margin. Inflorescence 2.5-6.5 x 2-4 cm. Peduncle and branches rusty brown-pubescent. Pedicels 1.2-4 mm long, densely rusty brown-pubescent. Bracts, and - if present - bracteoles, narrowly triangular, 0.8-3.1 x 0.2-1 mm,acut ea t theapex , rusty brown-pubescent out­ side. Sepals olive green, elliptic to triangular, or narrowly or broadly so, 1-3.1 x as long as wide, 1.2-3.2 x 0.8-1.5 mm, outside rusty brown-pubescent or -puberulous. Corolla pale yellowish-green, in the mature bud 3.2-6 x as long as the calyx, 6.8-12.1 mm long; tube 1.1-2.4 x as long as the calyx, 2.5-3.8 mmlong ,barrel-shaped , widesta to rslightl ybelo wth emiddl ean d there1.4-2. 1 mm in diameter, at the apex and base 0.6-1.1 mm; inside with tufts of hairs at 0.5-1 mm from the base; lobes 1.3-1.9 x as long as the tube, 3.5-6.5 x aslon ga swide ,4.2-7. 3 x 0.7-1.5 mm,outsid epuberulou s orglabrous ;coron a 0.4-1 mm long. Stamensinserte d at 0.5-1 mm from the base of the tube;fila­ ments 0.2-0.3 mm long; anthers 7.5-14 x as long as thefilaments, 2-2. 8 mm long;tail s 0.3-0.4 mm long; fertile portion 1.2-1.4m m long. Pistil2.8-3. 3 mm long; carpels 0.8-1.4 x 0.5-0.9 x 0.1-0.3 mm, superior portion 0.5-0.9 mm long; disk: ring 0.1-0.4 mm high, lobes 0.1-0.4 x 0.2-0.4 mm; style 0.1-0.3 mmlong ;pisti lhead :uppe rportio n0.2-0. 5 x 0.2-0.4mm ,lowe rportio n0.7-1. 1 x 0.2-0.4 mm;appendice s 0.2-0.5 mm long. Each placenta with 15-45ovules . Fruits: follicles pendulous, narrowly cylindrical, tapering at both ends,makin g an angle of 40-180°, 9-48 x as long as wide, 10.5-30 x 0.4-1.3 x 0.4-1.3 cm;exocar p up to 1 mm thick, at the outer surface slightly sulcate, sometimes with orange-brown lenticels,greyish - to dark brown-pubescent. Seeds up to 35 in each follicle; coma 22-58 mm long; grain 12-22.6 x 2-6.1 x 0.5-3.6 mm; testarugose ;cotyledon s3.7-12. 8 x 1.2-5.4mm ;rootle t4.1-5. 8m mlong .

34 Agric. Univ. WageningenPapers85-2 (1985) 10 20 MAP6 .Oncinotis tenuiloba Stap f

Distribution: Africa from Western Nigeria to Ethiopia in the north and toEaster nSout hAfric a inth esouth . Ecology: Rainforests ,swam pforests ,riverin eforest s andsecondar y forests, onsand ,cla yan drock youtcrops; alt .0-180 0m .

A selection of the ca 130specimen s examined: NIGERIA: Gongola State: Mambilla Plateau, Sardauna Prov (fr. Aug.) H. M. Chapman FHI 70838(K) . CAMEROUN:Bafoussa m(fl .Jan. )Jacques-Feli x301 7(BR ,K ,P ,WAG) . CENTRAL AFRICAN REPUBLIC: Yalinga (fr. Oct.) Le Testu 4240 (BM, BR, P);ibid . (fl. Apr.) Le Testu468 1bi s(P) . CoNGO(-Brazzaville): near Montou Ya N'Gombe (fl. May) Sita 2118 (P); NTonkama Forest, 45k mS Wo fBrazzaville ,o nroa dt oKinkal a(fl .Nov. )Sit a 1922(P) . ZAIRE: Equateur: Ukaturaka (Oct.) Bequaert 40 (BR);nea r Lukasa (= Likasa) (fl.) Dewevre 883 (BR, type); Eala (fl., fr. May) M. D. J. Laurent 673 (BR); Coquilhatville (= Mbandaka) (fl. May) Seret 889 (BR);nea r Mondombe (fr. Nov.) Jespersen 46 (BR);ibid , (fl., fr. Nov.) Jespersen 75 (BR). Haut-Zalre: Tolele Isl., between Lileko and Basoko (fl. Sept.) Louis 11429 (BM, BR, EA, Fl, K, P);Tutuk u Isl., near Yangambi (fl. Apr.) Louis 9171 (BM, BR, K, MO, P);Esal i Isl., near Yangambi (fl. May) Louis 9207 (BM, BR, EA, Fl, K, P);Tofend e Isl., near Yangambi (fl. Apr.) Louis 14658(BR , EA,K ,MO ,NY) ;Banalia ,Ambal a Isl.o nth eAruwim i R.(Nov. ) Lisowski 47290 (BR); Kangole Isl. on the Lindi R., near Kisangani (Mar.) Lisowski 42130 (BR); Ubundu Isl.o n the Zaire R. (Mar.) Lisowski 48188 (BR);Kurukwat a (Aba) (fl., fr. Oct.) Gerard366 6 (BR, WAG(.Kivu :Rutshuru(fl . Mar.)Ghesquiere3806(BR,P) .Bandundu:Mistandungu(= = Mistan-

Agric. Univ. WageningenPapers 85-2 (1985) 35 dunga)(Aug. ) Chevalier 27864(P) ; Kutu (fl.) Lebrun 6649 (BR, K). Kinshasa: Maluku, on road to Mabana (buds,Nov. ) Breyne98 4(BR , WAG). Bas-Zai're:Gimbi ,i nth eMvuz i Valley (fl. Feb.) Toussaint84 1 (BR);M'Vuaz i(fl .Dec. )Delhay e32 5(BR) . SUDAN: Gilo, Imatong Mts. (buds, Nov.) Friis & Vollesen 355 (BR); Talanga, Imatong Mts. (fl.Dec. )Frii s& Vollese n72 1 (BR). ETHIOPIA: Ilubabor Province: Heti (fl. Dec.) Mooney 8813 (K). Kaffa Province: Bonga (fl., fr. Dec.) Bos 9385 (WAG); 3 km So f Bonga, on path to Ghecchia R. (fl. Jan.) Ash 1471 (K, MO).Arusi Province:nea rLak eAwasa(fl . Dec.)Ellenbec k 1710(K ,typ e ofMotandraerlangeri). UGANDA: Bugoma Forest (fr. Nov.) Dawe 705 (K); Busoga, Butemba Bunya near Kagoma (fl. Nov.) G. H. S. Wood 16(BR , EA, K); 8 km from Mpigi, on the Entebbe-Masaka road (fl. Feb.) Eggeling422(BM ,EA ,K) ;Kasal a Forest(fl .Jan. )Dumme r 1416(BM , EA,K , MO,US ,Z) ;Mbar a (fl.Jan. )Dumme r329 7(BM ,K ,US ,Z) . : Rift Valley Province: Kaimosi, Kapsabet Distr. (fr. June) G. R. Williams 576 (EA, Fl, K,PRE). TANZANIA: Lake Province: Ukerewe(fr. Nov.)Conratz460(HBG).Tang a Province: Mom- bo For. Res., Korogwe Distr. (fl. June) Semsei 3488 (EA, K, PRE); Mombo, Usambara Mts. (fl., fr. June) Peter 40756 (WAG); Magunga Estate, Korogwe Distr. (fl. May) Faulkner 945 (BR, K, LISC, S);Deremanea rAman i (fl. Jan.) Braun 3357 (EA, K);ibid . (fr. May) Grote 3746 (EA, K); Sigi-Longuza road (fl. May) Peter 58260 (B, WAG); Kihuhwi (fl. May) Greenway 6693 (EA, K, PRE); Chazi, Morogoro Distr. (fl., fr., fr. Aug.) Greenway 8627 (EA, K, PRE). Southern Highlands Province: Taveta (fl. Jan.) Greenway 4478 (EA, K); Bundali near Isoko, Kyimbila Distr. (fr.) Stolz 2563 (A, BM, BR, C, EA, K, MO, P, PRE, Z). Zanzibar: sin. loc. (fl.) Vaughan 1730(EA,K). : Nsumbu Isl. in Lake Bangweulu, Luwingu Distr. (fl. Oct.) Brenan &Greenwa y 8103 (K). : Lisau Saddle, Chiradzulu For. Res. (fr. Jan.) J. D. Chapman & Balaka 6095 (BR); Mt. Mulanje, Ruo Gorge (fr. Jan.) Hilliard &Burt t 4631 (E);Chol o Distr. (Oct.) J. D. Chapman 957(SRGH). ZIMBABWE: Mt. Horzi, Bikita Distr. (May) Biegel 3115(K , SRGH, WAG);Chirind a Forest (fl., fr. Oct.) Swynnerton 87 (BM, K, SRGH, Z, type of O. chirindica); ibid, (fl., fr. Oct.) Wild 2175 (BR, COI, EA, K, S, SRGH); ibid, (fl., fr. Oct.) Goldsmith 41/64 (BR, K, LISU, M, MO, PRE, SRGH); near Lusitu R. (= Rusitu R.), about 5 km upstream for confluence with Haroni R. (fr. Apr.)Drummon d 10187(SRGH) . : Mozambique Province: Murripa Mts. near Malema, km4 0 road Entre Rios- Ribaue(imm .fr . Dec.)Torr e& Correia 16521 (LISU). Zambezia Province:Tumbin e Mts., Mi- Iange Distr. (fr. Jan.) Correia 450 (LISC). Manica e Sofala Province: near Dombe (fl. Aug.) Simao48 5(LISU) . SOUTH AFRICA: Natal: Hlogweni Forest, S of Tugela R., Stanger Distr. (fl. Sept.) Moll 3601 (BR,K ,PRE ,S) ;Inand a(fl. , fr.Sept. )J .M .Woo d 1009(BM ,K , MO,P ,lectotyp eo fO. inandensis); ibid. (fl. Oct., fr. June) J. M. Wood 6159 (BM, E, K, L, NY, PRE, paratype of O. inandensis); Uvongo Beach (Dec.) Strey 8320 (M, PRE); Ellesmeere, near Dumisa, Alexandra Distr. (fl. Oct.) Rudatis 1198 (A, BM, E, HBG, G, K, L, M, S, W, WAG, Z);Tabl e Mountain, Pietermaritzburg (fl., fr. Sept.) Killick 683 (E, K, MO); Shelley Beach, Kloof Forest (fl. Oct.) Strey 7721 (BR, K, S). Cape Province: about km 9 road Mbotyi-Lusikisiki (fl., fr. Aug.) Story 4243 (K, PRE);k m 1.5roa d PortSt .Johns-Umtat a(Feb. )Well s339 7(PRE) ;Manubi e Forest, Kentani Distr. (fl. Oct.) Pegler126 1 (PRE,S) . Cult.:SOUT HAFRICA :Transvaal : LowveldBot.Garde n(fl .Oct. )Buitenda g 1094(K) .

Note: O.inandensis is here reduced to a synonym of O. tenuiloba. PICHON'S revision (1954) separates them by a slight difference in the size of the anthers. Observations byth epresen t author indicate that theyar econtinuousl y variable insiz ean dthi scanno t beaccepte da sa differentia l character.

36 Agric. Univ. WageningenPapers 85-2 (1985 ) 7. Oncinotis tomentella Radlk. 1883:405-406 ; Schumann 1895a: 179; 1895b: 319(a sO. hirtella); Pichon 1950:143,pi .X ,fig. 14 ;1954:20-22 ; 21fig., 2 ; Mark- graf1976:223-224 ;225 ,pi .36 . Fig.7 ; Map7 Type:Madagascar :Nos y Be,Hildebrand t 3283(BREM , holotype;isotypes : K,L,M,P,W). Heterotypicsynonyms :O. nigra Picho n1954:19-20 ;21 fig., 2 ;Markgra f1976 : 224-226;225 ,pi .36 .Type :Madagascar :Perinet ,Analamazaotr a forest,Perrie r del aBathi e894 7(P ,holotype ;isotype : K).

Large liana. Branches dark to medium brown and culcate when dry, often with some large orange to pale brown lenticels; branchlets brownish-green to darkgrow nan dslightl ysulcat ewhe ndry ,puberulou st orust ybrown-pubescent . Leaves: petiole 5-14 mmlong , glabrous, puberulous orrathe rdensel ycovere d with upt o 0.2 mmlon g simple or branched hairs, along the adaxial side near the base of theblad ewit h 2triangula rgland s upt o 1 mmlong , often also 1-5 isolated ones or 1-5 clusters of 2-4 smaller glands; blade obovate, less often elliptico rnarrowl yso , 1.6-3.5 x aslon ga swide ,2.9-11. 8 x 1.2-4.7cm , acu­ minatea tth eapex ,cuneat eo rrounde da tth ebase ,usuall yundulat eo rrecurve d atth emargin ,paper yt ocoriaceou swhe ndry ,glabrou so rles softe npuberulou s on the midrib and veins, medium green above, slightly paler beneath, glossy, especially so above; blade in the leaves of thefirst pai r or thefirst tw o pairs of a branchlet often suborbicular, rounded, obtuse or emarginate at theape x andsmaller ;o neac hsid e4-1 2secondar y veins;tertiar yvenatio nconspicuous , reticulate orfaintl y scalariform; domatia sometimes absent, usually consisting ofpits ,ofte nwit ha ciliat emargin .Inflorescence 3.5-8. 5 x 1.5-5.5cm .Peduncl e andbranche srust ybrown-pubescent , glabrescent. Pedicels 1.5-3(-4)m m long, denselyrust ybrown-pubescent ,glabrescent .Bracts ,an d- ifpresen t- bracteoles, ovate to triangular or narrowly so, 1-1.6 x 0.3-1.2 mm, acute at the apex, outside rusty brown-pubescent. Sepals brownish-green, ovate to triangularo r - less often - narrowly so, 1.2-3.3 x as long as wide, 1.2-3.2 x 0.8-2.2 mm, outside rusty brown-pubescent. Corolla yellow-green, in thematur e bud 3-6.2 x as long as the calyx, 7.5-10.4 mm long; tube urceolate, widest below the middle and there 1.5-2 mmi n diameter, 1.4-2.7 x as long as thecalyx , 2-3.6 mm long, at the base and at the apex 1-1.2 mm in diameter; inside with tufts of hairsa t 0.9-1.1 mmfro m thebase ;lobe s narrowly triangular, 1.1-2.3 x as longa sth etube ,4-7. 6 x aslon ga swide ,4-7. 2 x 0.7-1.1 mm,outsid epubes ­ cent; corona0.1-0. 5 mm long,pubescent . Stamensinserte da t0.7-0. 8 mm from the base of the tube;filaments 0.2-0. 3 mm long; anthers 6.5-13 x as long as thefilaments, 1.9-2. 7 mm long; tails 0.3-0.6 mm long; fertile portion 1.1-1.3 mm long. Pistil 2.8-3.4 mm long; carpels 0.9-1.5 x 0.4-0.8 x 0.2-0.5 mm, superior portion 0.6-1 mm long;disk : ring0.1-0. 5 mm high, lobes 0.1-0.7 x 0.3-0.7 mm; style0.2-0. 3 mm long; pistilhead : upperportio n0.4-0. 5 x 0.2-0.4 mm, lower portion 0.6-1 x 0.3-0.5 mm; appendices 0.3-0.5 mm long. Each placenta with 20-50 ovules. Fruits: follicles fusiform, oralmos t so, sometimes recurved orupcurved , makinga nangl eo f 170-230°, 14-18 x aslon ga swide ,

Agric. Univ. WageningenPapers 85-2 (1985) 37 38 Agric. Univ. IVageningenPapers 85-2 (1985) MAP7 . Oncinotistomentella Radlk .

8.1-19.5 x 0.4-2.1 x 0.4-2.1cm ;exocar pu pt o 1 mmthick ,sulcate ,pubescent , glabrescent and often with pale brown lenticels at the outer surface. Seedsu p to4 0i neac hfollicle ,com a23-5 4m mlong ,grai n 13.3-26.2 x 2.9-6.5 x 1.9-3.2 mm,minutel y rugose;cotyledon s 10.4-15.5 x 2.5-6.3 mm;rootle t 2.5-4.5m m long.

Distribution: Madagascar. Ecology:Forests ,especiall yo nrock youtcrops .

A selection of theca 50 specimens examined: MADAGASCAR:Ambr eFores t(fl .Jan. )Perrie rd el aBathi e 17566(P) ;Nos y Be(fl . Dec.)I lildebrand t 3283 (BREM, K, L, M, P, W, type); along road from Antsohihy to Bealanana, 13-15 km E of Antsahabe (fl., fr. May) Gentry 11764(K , MO, P, PRE, WAG); ibid., 7-10 km Eo f Antsahabe (fl., fr. May) Gentry 11550(K , P, PRE,WAG) ; Mahajamba Forest (fr. Nov.) Perrierd el a Bathie 11761 (P);nea rMandritsar a (fr. Nov.) Perrierd el a Bathie 15041 (P);Masoal a (buds, Oct.)Perrie r del aBathi e890 5(P) ;Ampijoro a(fr .Sept. )Boitea u 1090(P) ;Mandrat y Forest(fl. , fr.Mar. )Perrie r de la Bathie 1002 p.p. (P); Belambo, left bank of Ikopa R., near Maevatanana (fr. Nov.) Perrier de la Bathie 1002 p.p. (P);Antsihanak a (fl. Nov.) Boiteau 2291 (P);ibid . (fl. Nov.) Boiteau 2207 (P);Antsalova , BeranoFores t(buds ,Jan. )Serv .For .Madag .(SF )2652 3(P) ;Analamazaotr aFores t (fl. Jan.) Perrierd e la Bathie 8947 (K, P, type of O.nigra); ibid. (fr. June) Boiteau 3734 (P);ibid. , Perinet (fr. Apr.) Bosser 15916 (P);ibid . (fl. Nov.) Benoist 1514 (P, WAG); Analavelona Forest, Fiherenana R.(fl . Dec.) Humbert 19754 (P,WAG) ;Analamarin a Forest, nearTchez a R.an dOni - lahy R., So f Sakaraha in the Hazoroa Valley (fl. Dec.) Humbert 19667 (P, WAG);ibid . (fl. Mar.) Humbert & Capuron 29705 (P, WAG); ibid. (fr. Mar.) Humbert & Capuron 29706 (P, WAG); betweenVondroz oan dIvohibe ,nea rFarafangan a (fl. Sept.)Decar y529 8(G ,P) ;ibid. ,nea rSavok a (fl. Sept.) Decary 5429 (BM, P, PRE, S); along Fiherenana R., between Beantsy and Anjamala (fl. Jan.) Humbert 19908 (P, WAG);Tulear , Behompy, on road to Anjamala (fr.) J. &M . Peltier 2506(P) ;alon gMandrar eR. ,o nMarosou isummi t(fl .Nov. )Humber t658 6(G ,P) .

Note: Thevariatio n both inth evenatio n and inth epubescenc e ofth eleave s showsa nirregula r pattern throughout thespecimens .Therefor e thepresen t au­ thorconside rO. nigra a sa synony mo fO. tomentella.

FIG. 7. Oncinotis tomentella Radlk.: 1flowering. branch ,i x; 2. leaf basewit h petiole from above, 4 x; 3. domatia, 4 x; 4.flower, 4 x; 5. opened flower showing 2 stamens and the pistil; the left stamen detached from the pistil, 8 x; 6. stamen, adaxial side, 8 x; 7. fruit, J x; 8. seed, J x. (1-6Decar y5298 ;7-8 .Perrie rd el aBathi e1002) .

Agric. Univ. WageningenPapers 85-2 (1985) 39 NOMINA NUDA

O.oblanceolataEngl. 1910:309. = O. tenuilobaStapf . O. paniculosa Mildbr. 1922:62 . Specimen cited: Mildbraed 4920 (probably destroyeda tB) .

EXCLUDED SPECIES

O. axillarisSchuman n 1896:226-227. = Baisseamultiflora A .DC . {Apocyna- ceae). O. campanulata Schumann 1896: 227. = Baissea campanulata (Schumann) DeKruif ,comb .nov .(Apocynaceae). O. melanocephala Schumann 1894:34 . = Baissea myrtifolia (Benth.) Pichon {Apocynaceae). O.subsessilis Schuman n 1900: 307. = Baisseamultiflora A. DC. {Apocyna­ ceae). O. zygodioidesSchuman n 1896:227-228. = Baisseazygodioides (Schumann ) Stapf{Apocynaceae).

REFERENCES

ADAM, J.G . 1975.Flor e descriptive desMont s Nimba3 . Mem.Mus .Nat . Hist. Nat.,ser .B ,Bot . 24. BAILLON,H .1888 .Bull .Soc .Linn .Pari s1 . BAILLON,H .1889 .Histoir ed ePlante s10 .-Hachette ,Paris . BENTHAM,G . 1849.Flor aNigritiana .In :HOOKER ,W .J. ,Nige rFlora .- Bailliere,London . BENTHAM,G .& J .D .HOOKE R1876 .Gener aPlantaru m2 .- Reeve& Co. ,London . BERHAUT,J . 1971.Flor eillustreed uSenega l l.Govt. Ed.,Dakar . COATESPALGRAVE ,K .1977 .Tree so fSouther nAfrica .- Struik,Cap eTown-Johannesburg . CODD, L. E. 1963.Apocynaceae . In:DYER , R. A., L. E. CODD &H . B. RYCROFT (eds.), Flora of SouthernAfric a26 .- Dept.Agric ,Pretoria . DE WILDEMAN, E. 1908.Notice s surde splante s utiles ouinteressante s del a Flore duCong o2(2) . -Govt. Congo,Bruxelles . DE WILDEMAN, E. 1915. Decades novarumspecieru m Florae Congolensis 3.Bull .Jard . Bot.Brux . 5:1-108. DEWILDEMAN ,E .1920 .Addition sa l aFlor ed uCongo .Bull .Jard .Bot . Brux.7:1-88 . DEWILDEMAN ,E .1932 .Planta eBequartiana e5(4) .- Museed uCong oBeige ,Tervueren . DE WILDEMAN, E. &T . DURAND 1899.Contribution s a la Flore du Congo. Ann. Mus.Congo , Bot.,ser .2,1(1) . DE WILDEMAN, E. &.T . DURAND 1901a. Illustrations de la Flore du Congo Ann.Mus .Congo. , ser.2,1(1) . DE WILDEMAN, E.& .T . DURAND 1901b. Reliquiae Dewevreana. Ann.Mus .Congo , Bot.,ser .3 , 2. DUBARD,M .1911 .Deu xApocynee snouvelle sd el acot eoccidental ed'Afrique .Notul .Syst .2 . DUBARD,M .1912 .Deu xApocynaceesafricaines .Agric .Prat .PaysChaud s12(1) . DYER, R.A .1975 .Th eGener ao fSouther nAfrica nflowerin gplant s1 .- Dept.Agric ,Pretoria . ENGLER, A. 1910.Di e Pflanzenwelt Afrikas. In: ENGLER, A. &O . DRUDE (eds.), Die Vegetation derErd eIX ,1 (1) .- Engelmann,Leipzig .

40 Agric.Univ. WageningenPapers 85-2 (1985) HALLE, F. & R. A. A. OLDEMAN 1970. Essai sur l'architecture et la dynamique de croissance des arbrestropicaux .- Masson& Co. ,Paris . HALLE, F., R. A. A. OLDEMAN &P . B. TOMLINSON 1978. Tropical Trees and Forests. - Springer, Berlin-Heidelberg-New York. HIERN, W. P. 1898. Catalogue of the African Plants collected by Dr. FRIEDRICH WELWITSCH in 1853-61.Dicotyledon s 1(3).- London. HUBER, H. 1963. Apocynaceae.In : HEPPER, F. N. (ed.), Flora of West Tropical Africa, ed. 2, 2. -HMSO,London . HUTCHINSON,J .& J .M .DALZIE L1931 .Flor ao fWes tTropica lAfrica ,ed . 1,2.- HMSO,London . IRVINE,F .R . 1961.Wood yplant so fGhana.-Oxfor d Univ.Press ,London . MANGENOT, S.& G . MANGENOT 1958.Deuxiem elist ed enombre schromosomique snouveau xche z diverses dicotyledones et monocotyledones d'Afrique occidentale. Bull. Jard. Bot. Brux. 28: 315-329. MARKGRAF, F. 1967.Apocynaceae. In:Flor ed eMadagasca re tde sComore s 169.- Mus.Nat . Hist. Nat.,Paris . MILDBRAED,J . 1922.Wissenschaftliche n Ergebnissede rZweite nDeutsche n Zentral-Afrika-Expedi- tion 1910-1911,2.-Klinkhardt&Biermann,Leipzig . MOORE,S . 1911.Gamopetalae . In:RENDLE ,A . B.,E . BAKER, S. MOORE& A . GEPP, A Contribution to our knowledge of the Flora of Gazaland: being an Account of Collections made by C. F. M.SWYNNERTON .Journ .Linn .Soc .Bot .40:1-245 . OLIVER,D . 1877.In :HOOKER ,J .D. ,Hooker' sIcone sPlantaru m13 .- Longman,London . OLIVER,D . 1894.In :HOOKER ,J .D. ,Hooker' sIcone sPlantaru m24 .- Longman,Rees ,Orme ,Brown , Green& Longman ,London . PALMER,E .& N .PITMA N 1972.Tree so fSouther nAfric a3 .- Balkema,Cap eTown . PHILLIPS,E .P . 1951.Th eGener ao fSout hAfrica nFlowerin gPlants ,ed .2 .- Govt.Ed. ,Pretoria . PICHON,M . 1948a.Classificatio n desApocynacees: XVGenre s Trachelospermum, Baisseae t Oncino- tis.Bull .Mus .Nat .Hist .Nat.,ser .2,20:190-197 . PICHON, M. 1948b. Classification des Apocynacees: XIX Le retinacle des Echito'idees. Bull. Soc. Bot.Franc e95(5) : 211-216. PICHON, M. 1950. Classification des Apocynacees: XXV Echito'idees et XXVIII Supplement aux Plumerioidees. Mem.Mus .Nat .Hist .Nat.,ser .B ,Bot .1(1) :1-174 . PICHON, M. 1954. Classification des Apocynacees: XXXVIII Revision du genre Oncinotis Benth., Bull.Jard .Bot .Brux .24(1) :9-36 . RADLKOFER, L. 1883. Einbeitra g zurafrikanische n Flora. Abhandl. Naturw. Ver. Bremen8 :369 - 442. SCHLECHTER, R. 1900.Westafrikanisch e Kautschuk-Expedition.- Verlagde sKol.-Wirt .Komitees , Berlin. SCHUMANN, K. 1894. In: ENGLER, A., Uberdi e Gliederung derVegetatio n von Usambara undde r angrenzendenGebiete .Phys .Abh .Kon .Akad .Wiss .Berli n1 . SCHUMANN,K . 1895a.In :ENGLER ,A .& K .PRANTL ,Di enaturliche nPflanzenfamilie n4(2) :109-189 . SCHUMANN, K. 1895b. In: ENGLER, A., Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete C. - Reimer,Berlin . SCHUMANN,K . 1896.Apocynaceae africanae. In:ENGLER ,A. ,Bot .Jahrb.23:219-231 . SCHUMANN,K . 1903.Apocynaceae africanae. In:ENGLER ,A. ,Bot .Jahrb .33:316-321 . STAPF,0. 1894.DiagnosesAfricanaeIII.KewBull. :120-126 . STAPF,0.1897 .Diagnose sAfricana eX .Ke wBull. :243-300 . STAPF,0.1898 . DiagnosesAfricana eXII .Ke wBull. :301-310 . STAPF, O. 1902.Apocynaceae. In:THISELTON-DYER , W. T., Flora of Tropical Africa 4(1):24-231 . - Reeve& Co. ,London . STAPF, O. 1904. Addenda. In: THISELTON-DYER, W. T., Flora of Tropical Africa 4(1): 588-627. - Reeve& Co. ,London . STAPF,0.1907a .Diagnose sAfricana eXIX .Ke wBull. :45-55 . STAPF, O. 1907b.Apocynaceae. In:THISELTON-DYER , W.T. , Flora Capensis4(1) :490-518 .- Reeve, &Co. ,London .

Agric. Univ. IVageningenPapers 85-2 (1985) 41 STAPF, O. 1914. In: MILDBRAED, J., Wissenschaftliche Ergebnisse der Deutschen Zentral-Afrika- Expedition 1907-1908,2.- Klinkhardt& Biermann ,Leipzig . WALPERS,G .C . 1852-1853.Annale sBotanicesSystematicae3.-Ambrosius ,Leipzig . WOOD,J .M .& M .S .EVAN S 1899a.Ne wNata lPlants .Journ .Bot .37:251-255 . WOOD,J .M .& M .S .EVAN S 1899b.Nata lPlant s1 .- Bennett& Davis ,Durban .

ACKNOWLEDGEMENTS

Iwoul d liket o thank staff and collaborators of the Department ofPlan t Tax­ onomy of Agricultural University Wageningen for all their help in connection with this monograph, especially Dr. A. J. M. LEEUWENBERG for his kind super­ vision, Mrs. W. WESSEL-BRAND and Mr. P. J. KOSTENSE for the fine drawings, Miss Drs. F. J. H. VAN DILST and Dr. C. E. JARVIS for the correction of the text.I a mals over ygratefu l toth edirector san d keeperso fth efollowin g herbaria for putting their material at my disposal: A, AAU, B, BM, BP, BR, BREM, C, COI, E, EA, F, FHO, FI, G, GB, GH, GOET, HBG, K, L, LD, LE, LISC, LISJC, LISU, M, MO, NY, P, POZG, PRE, S, SRGH, U, UC, UCJ, US, W, WAG,WU ,YA ,Z . I received agran t from theWageninge n Agricultural University Fund to sup­ port myfield wor k in IvoryCoast ;th eNetherland s Foundation for theadvance ­ mento fTropica l Research (WOTRO) provided agran t that enabled met o carry outfield wor ki n Cameroun.

INDEX OF EXSICCATAE

The number in the paranthese corresponds with the species-number of the re­ vision.Onl ynumbere dcollection shav ebee nlisted .

Adam,J.G.,3441,7533(1) , 13439(4) ,20818(1) , Benoist,R., 1514(7). 20942,25188(2) ,2613 6(1) ,26342,2878 0(2) , Bequaert,J .C , Liberia:2 2(1) , 119,135(2) ;Zaire : 28831(1). 40(6). Adams,C .D. ,258 4(2) . Berhaut,J. , 1317,2168,3358,5179,5180,5391,5406 AkeAssi,L.,8033,8805(l),9847(4), 11801(1). (4). Andoh,J .E. ,326 6(2) . Biegel,H .M. ,311 5(6) . Andrews,F .W. , 1732(5) . Bittkau,2 (6) . Ash,J. , 1471(6) . Boiteau,P. , 1090,2207,2291,3734(7) . Badre,F. ,30 4(2) . Bokdam,J. ,281 4(4) . Baldwin,J .T. ,jr. ,9066 A(1) ,9074,9537,10112 , Bolema,D. ,31 8(3) . 10269A(2), 10552(1), 10683(2), 10684A, 13235, Bos,J.J.,6793(1),9385(6). 13271(1) , 13312(2), 13324(1), 13454,13468, Bosser,J. ,15916(7) . 13502,13580(2), 13677(4), 13705(2), 13706(4), Bouquet,A. , 1942(1). 14006(1),14023(5) , 14031,14032,14058(1). Braun,K.P.G.J.,3357(6). Bally,P .R .O. ,876 7(5) . Brenan,J .P .M .& P .J .Greenway ,810 3(6) . Bamps,P. , 1568(1). Breteler,F.J., 1270,1989(1),2091,215 7(5) ,2629 , Barbier,C.,585(5). 2945(1),591 4(5) ,7349(1) . Bates,G.L. ,403,1083,1396(1) , 1502(5). Breteler,F.J.,J.J.F.E.deWilde&A.J.M. Batten-Poole,W .H. ,4 8(4) . Leeuwenberg,245 9(5) .

42 Agric. Univ. WageningenPapers 85-2 (1985) Breyne,H.,984(6),992(3). Endengale,E. ,7 4(1) . Brown,E. ,29 9(3) ,353(1) . Enti,A.A.,FE1290(l),FE 1407(5) ,G C1633(4) , Buitendag,E. , 1094(6). GC1688(2) ,G C3942 0(5) ,G C4201 8(5) ,S p42 4 Callens,H.,2662(3). (5),Sp555(2). Chandler,P. , 1270(3), 1408(6). EspiritoSanto ,J .V .G .d. ,2174,233 7(4) . Chapman,H .M. ,FHI7083 8(6) . Evrard,C , 632(3) ,64 2(2) ,652,95 3(1) , 1144(5) , Chapman,J . D.,95 7(6) . 1296(2), 1354(5), 1395(3), 1785,1919,2920,2922 Chapman,J . D.& J . Balaka,609 5(6) . (1),3113,4149(3),4183,4213(1),480 7(5) ,4911 , Charles,G.,A4 9(3) . 5576,6019(1). Chase,N.C. ,421(6) . Farmar,L. ,424,46 7(2) ,55 2(5) . Chevalier,A. , 15514,15623,16092(4), 16531,16622 Farron,C,4809,7546(1) . (5), 16661 (2),16693,16820(5) , 17391,17643(2), Faulkner,H.G. ,945,1188(6) . 17765(5), 19022,19087(2), 19128(4) ,2078 9(2) , FHI,5239,13752,19672,20908(1) ,22531,2557 2 20966(1) ,2280 4(4) ,2320 2(1) ,27864,2811 7(6) . (2),3099 0(1),61612,6798 3(2) ,7083 8(6) . Claessens,J. , 1024(3). Flamigni,A. ,6401(1) . Compere,P. ,92 5(3) , 1065(1). Foster,E.W. , 158(5). Conratz,P.,460(6). Friis,I .& K .Vollesen ,355,72 1(6) . Corbisier-Baland,A. , 1620(5). Gamier,P. ,PG/U B 19(2). Correia,M.F.,450(6). Gbile,Z .O .& M .G .Latilo ,FH I2090 8(1) . Couteaux,G. ,34 0(5) . Geerling,C .& J . Bokdam,251 7(2) . Croegaert,J.,33(l). Gentry,A. , 11550,11764(7) ,3312 3(5) . Dalziel,J .M. , 1347(4). Gentry,A .& G .E .Pilz ,3271 3(1) ,3274 2(2) ,32745 , Darko,K.O.,475(2),914(l). 32746(5), 32789(1). Dawe,M.T.,161(5),705(6). Gerard,P., 1563,1851,2471(3) ,252 5(0,3329(5) , Dawkins,H.C,659(1) . 3522(3) ,366 6(6) ,4022,420 5(3) ,436 7(1) ,492 6 Deaw,J.,Sp388(l). (3),500 3(3) ,505 1(1) ,520 0(3) ,529 8(5) ,5405 , Decary,R.,5298,5429(7). 5497,5758(3). DeGiorgi,S., 1043(3). Germain,R. ,462(1) ,4930,5110,5150,8187(3) . Delhaye,R.E.,325(6). Gerstner,J.,2598(6). DeKoning ,J. , 1673(2) ,346 3(5) ,474 6(2) ,479 6(5) , Ghesquiere,J. ,380 6(6) . 6812,6819(1),6883(5). Gilbert,G. , 1427(0,7984(6). DeKruif ,A .P .M. ,34 6(1) ,65 9(2) ,66 2(4) ,663 , Gillet,J. ,702,124 4(3) , 1269(6) ,221 6(3) . 664(1),666(5) ,681(1) ,684(5) ,692,694(1) ,69 6 Goldsmith, B.,2/75,41/6 4(6) . (5),697,698,700,70 1(4) ,706,71 2(1) ,71 9(4) , Goossens,V. ,255 9(6) ,285 8(3) . 723(5),787(1),882,91I(5). Gossweiler,J. ,671,684,745,439 5(1) ,4445,4499 , Devred,R.,382(1) ,77 3(3) ,820,96 8(1),4044(3) , 4626,4782,4823(3) ,486 9(1) ,552 2(3) ,5685 , 4063,4158(1). 5685a,5685b(l) ,6551,6551b ,8040(3) . Dewevre,A. ,88 3(6) . Greenway,P .J. ,4478,6693,862 7(6) . DeWilde,J.J.F.E.,3142,7901A(l). Grote,3746(6). DeWilde ,J .J . F.E .& A .G .Voorhoeve ,367 3(1) . Gutzwiller,R. , 1864,2413(1),252 5(2) . DeWilde ,J .J .F .E. ,J .C .Arend se tal. ,40 8(1) . Hakki,M. ,B .Leuenberge r& C .Schiers ,79 0(2) . DeWilde ,W .J .J .O. ,22 1 (1),47 9(4) ,545,64 6(2) . Hall,J .B. , 1910,2172,2336,3197(4). DeWilde ,W .J .J .O .& B . E.E .d eWilde-Duyfjes , Hall,J . B.& Abbiw ,G C4457 8(5) . 1116,1116B(1),1423(5),3702(1). Hall,J.B.&J.M.Lock,GC44149(l),46758(5). DeWit,H.CD. , 9417(5). Hall,J . B.& Nabooh ,G C4665 5(1) . DeWulf,A.,863(3). Halle,F. , 1685(1). Donis,C,2073,2090(1) . Halle,N.,2861(l). Drummond,R .B. , 10187(6) . Harley,R.M.,9569(1) . Dubois,L. ,503,609(1) . HarIey,W.J.,699(l). Dummer,R.,809(1) , 1392(3), 1416(6),2988(1), Hart,T.B., 342(0,350(5). 3297(6) ,443 0(6) ,434 8(5) . Hildebrandt,J.M.,3283(7). Eggeling,W .J. ,42 2(6) ,303 5(5) . Hilliard,U .M .& B .D .Burtt ,463 1 (6). Eimunjeze& Ekwuno ,FH I6798 3(2) . Humbert,H. ,6586,19667,19754,19908(7) . Ellenbeck,H., 1710(6). Humbert,H .& R .Capuron ,29705,2970 6(7) . Emwiogbon,J.A.,FH I61612 . Irvine,F.R. ,30 9(2) . Agric. Univ. WageningenPapers 85-2 (1985) 43 Jacques-Felix,H. ,2306(1) ,301 7(6) . 14767(6), 15267(3), 15298(5), 15862(6), 16055, Jans,E. ,841,896(1) . 16576(5), 16654,16772,17004(6). Jespersen,K. , 1,3 (5), 12 (1), 29 (3), 46 (6), 59 (3), Lye,K .A. ,M .Morriso n& P . Rwaburindore,258 8 75(6) ,8 3 (5), 85(1),8 8(5) . (1). Johnson,W.H. ,658(2) ,883(1) ,902(2) , 1064(1). Macgregor, W. D., 583 (2). Jolly,A.,313(4). Maclaud,C, 176(4). Katende,A .B. , 1729 (3), 2230 (5). Mahieu, 243 (5). Keay,R.W .J. ,FH I 13752(1),FHI22531 ,FH I Maitland,T . D., 435 (6), 744 (1), 909 (5). 25572(2). Malchair,L. ,33 3 (2). Keay,R .W . J. & C. F.A .Onochie ,FH I 19672(2) . Meer, van, see Van Meer. Kennedy,J .D. , 1627,1629(1). Mezili,P.,57(l). Killick,D.J.B.,309,683(6). Migeod,F.W.H.,256(1) . Kitson,A .E. , 1229(1). Mildbraed, J., 3217(2) , 8293 (5), 9056 (2). Klaine,T . J., 1274,1464,2168,2591,2726,3323, Millen,H., 106,189(2). 3447(1). Moll,E .J. ,3265,3601,4950(5) . Koechlin,J.,1191(3). Mooney,H.F.,8813(6). Koning,de , seeD eKoning . Morris,T.W. ,84 4 (6). Kruif, de, seeD eKruif . Mortehan,M.G., 143(3),452(1) ,759(3) ,807(1) . Krukoff,B.A.,71 (5),72(2),81,169,211,223(1) , Morton,J.K.,GC7823(4). 240(3), 1949-5,1949-7,1949-10(1), 1949-15(2), Oldeman,R .A .A. ,73 4 (2). 1949-17(1). Oldenhoeve, 7 (3). Krukoff, B. A. & R.Letouzey , 121,128,129(1) , Onochie, C. F.A. ,FH I5J239(1) . 203(5). Paroisse,G.,8(4). Lane-Poole, C. E., 300 (4). Paulo,S. ,20 5(6) . Latilo,M.G.,FH I30990(1) . Pauwels,L.,5008(1) . Laurent,M .D .J. ,67 3 (6), 888 (5). Pegler,A.,1261(6). Lebrun,J. ,732,4187(1) ,6066(3) ,6612(1) ,664 9 Peltier,J .&M. ,250 6 (7). (6). PerrierdelaBathie,H., 1002,8905,8947,11761, Lecomte,H. ,A7 3(1) . 15041,15867,17566(7). Leemans,J.,98(6). Peter,A. ,23429,40756,58178,58214,58232,5826 0 Leeuwenberg,A.J.M.,2257,4169(2),4997(l), (6). 5199,5411,5827(5) ,809 7(1) ,10636,1072 8(5) , Pierlot,R., 1775(5), 1982,3240(1). 10729(2),11968(5) ,11969,1201 1(2) ,12058 , Pittery, 179(1). 12119(5),12120(2) ,12140(4) ,1214 1(2) ,1215 7 Pynaert,L.,588(6), 1091,1305,1382(1). (5),12168(2) ,12559,12560(1) . Quarre,P. ,2195(1) . Leonard,A. ,17 4(6) ,66 0(5) ,732,749(1) ,1032(3) , Reygaert,F., 1310,1329(3). 2152(2),3318(1). Richards, P. W.,3190,335 8(2) . Leonard,J. ,876(1) . Ross,R. ,23 7(2) . LeTestu,G.,1255,1470(3) ,1836(1) ,185 7(3) ,424 0 Rudatis,H., 1198(6). (6),2093,4177(1) ,4681(2) ,46 8Ibi s(6) ,6338(1) , Sacleux,C, 1933(6). 7340(3) ,735 0(5) ,738 8(1) ,762 6(3) ,779 3(1) , Schlechter,R. , 12996(2). 8344(2),8825,9210,9417(1) . Schnell,R.,985bis(l). Letouzey,R. ,1318,1404,180 1(1) ,395 4(2) ,518 0 Scholes,J.,180(l). (3),5278(1),8018,8399(1) ,10816(2) ,12041(1) , Semsei,S.R.,3488(6). 12157(2). Seret,F. ,88 9(6) . Lewalle,J. ,5995,6651(1) . Serv.For .Madag .(SF) ,2652 3(7) . Liben,L.,2785(1) . Serv.Recherch e For. Cameroun(SRFK) , 1503(1) . Linder,D.H.,903(1) . Shaw,B.E.B.,18(2). Lisowski,S. ,42130,47290,48025,48188,52309 , Sim,T.R.,2437(6). 53317(6),55185(5),60281(1) ,60799(2) . Simao,J.,485(6). LouisJ. ,3823(1),4160,5845(5) ,6428,6512(1) , Sita,P., 1922,2118(6). 6805(3),9375(6) ,7767,913 1(0,9171,9207,936 4 Soyaux,H., 147(3). (6), 9630(1) ,975 1(5) , 10404(1) , 11210(5) , 11429 Spire, 19 pp.(1) . (6), 11637(1), 11682(6), 12017,12099(1),1246 9 Stolz,A. ,256 3(6) . (6), 12626,12659,12825,14145,14605(1), 14658, Story,R. ,424 3 (6).

44 Agric. Univ. WageningenPapers 85-2 (1985) Strey,R .G. ,7721,8320,925 5(6) . Vogel,T.,63(4). Swynnerton,C .F .M. ,8 7(6) . Warnecke,O.,450(4). Talbot,P .A. ,9 A(2) , 1675(2),1692(1) . Wells,M .J. ,339 7(6) . Tessmann,G.,604(1) . Wellens,F.,226(1) . Thompson,H .N. ,2 0(1) . Welwitsch,F. ,72 4(1) ,595 6(3) ,5957,5958,5959 , Thomas,N .W. , 1946(1),412 8(2) . 5959b,6014,6014 b(1) . Tisserant,C , 20,62,184(1) ,31 7(3) ,37 6(5) ,44 4 Whellan,A.J.,164(6). (1),45 7(5) ,78 8(2) ,915,107 2(1) ,224 6(3) ,232 8 Wild,H.,2175(6). (5),248 4(2) ,378 3(3) . Wilde,de ,se eD eWilde . Torre,A .R .& M .F .Correia , 16521 (6). Williams,G.R. ,57 6(6) . Toussaint,L. ,8 6(1) ,84 1 (6),892,90 1 (3). Winter,H.,478(l). Troupin,G. ,4643,7275,929 1(2) . Wit,de,seeDeWit. Unwin,A .H. ,15152(5) . Wood,G.H.S. , 16(6). Vanderijst,H. ,30595,36120(1) ,37694,3971 2(3) . Wood,J . M., 1009,6159(6). VanMeer ,P .P .C , 750,1023,1024(2) . Yafunga,F., 168(3),188(1) . Vaughan,J . H., 1730(6). Zenker,G. ,70,554,1552,2208,2208a ,2424,253 8 Venter,H.J.T.,2148(6). (1),258 8(2) ,2607a ,2973,3013,3039(1) ,310 2 Verger,P. ,80 4(4) . (2). Vermoesen,F. ,401,168 5(1) . Zenker,G .& A .Staudt , 13,530,544(1) . Versteegh,C .& R .W .de nOuter ,56 4(4) ,65 7(5) . Zimmermann,A. ,772 5(6) . Vigne,C, 1713,1867(2), 1951(1).

REGISTER

Synonyms are in italics. Page number of principal entries in bold face; those offigure san dphotograph si nitalics.

ApocynaceaeJuss. 1 hirtaOlive r 1,3,6,15,76,75 BaisseaA.DC. 2,11 hirtellaSchuman n 31 - campanulata(Schumann )DeKrui f 11,34 inandensisJ . M.Woo d& M .Evan s 27,30 - multifloraA.DC. 34 jesperseniiD eWiId . 7 - myrtifolia(Benth.)Pichon 34 malchairiDc Wild. 13,15 Baisseinae 2 sect.Affl/£o//.sPichon 2 Ichnocarpeae 2 melanocephalaSchuman n 34 MotandraA.DC . 2 mitisStap f 13,15 - erlangeriSchuman n 27,30 natalensisStap f 27 - glabrataBaillo n 7 fl/graPichon3 1 - welwitschianaBaillo n 15 nitidaBenth . 1,5,6,19,20,27 - zygodioides(Schumann )Stap f 34 oblanceolataEngl . 34 OncinotisBenth . 1,2,4 obovataDcWild. 23,27 - sect.4/r0//sPichon 2 paniculosaMildbr . 34 - axillarisSchuman n 34 pictaDewild. 15 - batesiiStap f 7,10 pontyiDubar d 1,5,6,11,22,23,24,25 - campanulataSchuman n 11 - var.breviloba Pichon 23,27 - chirindicaS.Moorc 28,30 subsessilisSchuman n 34 - chlorogenaSchuman n 11,15 tenuilobaStap f 1,5,6,2(5,27,29 - glabrata(Baillon )Stap fe xHier n 1,5,6,7,5,9, thyrsifloraSchumann ex Stapf 11,15 11,27 tomentella Radlk. 2,5,6,31,52,55 - glandulosaStap f 7,10 zygodioidesSchuman n 34 - gracilisStap f 1,3,6,11,72,14,19

Agric. Univ. WageningenPapers 85-2 (1985) 45