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New Species, Combinations and Synonyms for Zygia, Cojoba

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New Species, Combinations and Synonyms for Zygia, Cojoba 496 KEWBULLETIN VOL. 46 (3) Zygia cataractae (Kunth) L. Rico comb. nov. Inga cataractaeKunth in Nov. Gen. & Sp. 6: 297 (1823). Type: Venezuela, Orinoco, Herb. Humb. & Bonpl. '24' (holotype P-HB!). Pithecellobium cataractae (Kunth) Benth. in Hook., London J. Bot. 3: 213 (1844). Widely distributed in Amazonia. Zygia chagrensis (Pittier) L. Rico comb. nov. Pithecellobiumchagrense Pittier in Contr. U.S. Natl Herb. 20: 465 (1922). Type: Panama, Canal Zone, banks of the Chagres river, below Gatuin, Pittier 2808 (holotype US! photo. K!). Zygia coccinea (G. Don) L. Rico comb. nov. Inga coccinea. G. Don in Gen. Syst. 2: 390 (1832). Type: Peru, 'Muna' Ruiz & Pavon s.n. 'Pavon (Herb. Boiss et Oxon)' (lectotype MA; isolectotypes G?, F!, FHO!). Pithecellobiumcoccineum (G. Don) Benth. in Trans. Linn. Soc. 30: 594 (1875). Zygia confusa L. Rico sp. nov. in sectione Macrophylla L. Rico ponenda, a Z. unifoliolata et Z. pithecolobioideinflorescentiis longis spicatis et paraphyllidiis conspicuis foliolo omne oppositis differt. A Z. bifoliola specie Boliviensi proxima inflorescentiis brevioribus usque 25 cm nec 40 cm longis, calyce longiore 2 3-3 mm nec 1 mm longo et corolla breviore 8-9 cm nec 12 cm longa differt. Typus: Costa Rica, Utley 6050 (holotypus MO; isotypus DUKE). Unarmed tree up to 12 m tall; trunk 20 cm diam.; bark smooth, greyish- white; young shoots glabrous. Stipules 1 - 1 -8 mm long, filiform, glabrous, caducous. Petiole up to 5 mm long, with a sometimes obscure circular gland - 1 3 mm diam. at its apex; petiole appendage up to 6 mm long, filiform; leaves 1-jugate; pinna rachis less than 5 mm long, glabrous, each pinna bearing one leaflet; petiolule 3-5 mm long; minute paraphyllidia up to 3 mm long borne opposite each leaflet; leaflets 11 - 16 -5 (21) x 4- 7(-9) cm, elliptic, acuminate at apex, strongly inequilateral at base, chartaceous, glabrous on both surfaces, venation brochidodromous. Flowers in lax pendant spikes up to 25 cm long, on short shoots 4-10 mm long; each flower subtended by an inconspicuous deltate glabrous bract less than 0-8 mm long and persisting after anthesis. Calyx tubular, 2-3-3 mm long, 5-lobate and slightly bilabiate; calyx tube with conspicuous ribs at the base but not at the apex, glabrous. Corolla white, tubular, 8-9 mm long, longitudinally ribbed, symmetrically 5-lobate, 3-veined on each lobe, glabrous. Stamens with cream filaments and purple anthers, c. 50 - 60 per flower, 20 - 25 mm long; staminal tube 10 - 12 mm long, - slightly exserted. Ovary 1 5 mm long, sessile, glabrous; intrastaminal nectary 0 5 mm long, sometimes strongly lobate. Legume slightly falcate, terete, green 10 x 0 -7 cm, not constricted between the seeds, glabrous, dehiscent only along the dorsal suture, acute at apex and base, sessile (Fig. 1). COSTA RICA. Province El Lim6n, km NE of Bribrf and 15 km S of 4"-5 Cahuita, pastured slopes, 100 m, 12 March 1978, Utley 6050 (holotype MO; isotype DUKE). El Lim6n, 7 km SW of Bribrf, 4 May 1983, G6mez, Liesner &]udziewicz 20429 (K, MO). El Lim6n, forested hills above Bribri, 1 Feb. 1984, Pennington& Poveda 11461 (K, CR). Provincia Heredia, desembocadura del Sarapiquf, 27 May 1975, Poveda 1020 (F). NEW SPECIES, ETC. FOR LEGUMINOSAE-MIMOSOIDEAE 497 A I ~fl f ~ clil ppi ????.~?? I L - 1/1- 11L -\L J g?2-i ;-?-; /i r???::.? Y :?.i.:~s?r:T.?~; h' ??:?::5 ;r.?::???? F E LQI :5~ ?; ?.?? ?r ?~1?: ~:i-?~ ~~~~?. .. -t-?'s?~~ c. "it:~ i?:;:'.u.~~~,;.-~? ????~?iir?iz II ????;6~s;?2~?r '?'? ??' ~??: -?? ~? ?; ??.:?? :~?; s~~?? " *?. -?L?; ?~ ? ''''''''r ?5?.~I`Sr'r.???~ ?--? ?L??!Z? :~ h~???? .;v. ;? :rs:~?iS~?~:~i~~?..)?I:? .,:?? L;~j*ti ? ;???? ~i:'??? ?-?;?[:. ~?~;??' ~?::" i? r:?? 'i n ::?: .;c...? ..~~~';r~?xar~t~ "; .?: ~~iu?: ~L ?~:~""'''~? f~l :~(~~ :?isr~~- ??i?~?.;-. :;~~"` ?`?lr?~-:r. ???; ;~4~'~5~'::~~ 1'???? ?-.?~; :-:~'~;i:??~????.~~; , ~?c?..WSF~;~'=i~? '~;:c?~~?~:X:`" ?-????~----?:~~. :?? `2~"????;- .. ;??I~~~??~.??~: :25i~jl~i~~i~ Ir?:??:iX~L;! D UW~iJivui~ C FIG. 1. Zygia confusa. A flowering shoot x %; B detail of the petiole x 2; C flower x 3; D calyx opened out x 8; E detail of papillate corolla lobe x 15; F ovary with intrastaminal nectary x 15; G broken fruit x % . A- F from Utley 6050 and G from Gomezet al. 20429. Drawn by E. Catherine. 498 KEWBULLETIN VOL. 46 (3) GUATEMALA. Dept. Peten, Cadenas Rd., km 142 west, in high forest, 3 Nov. 1966, Contreras6514 (MEXU). Dept. Peten, La Cumbre, top hill 3 km N of Pusila Village road, 20 March 1977, Lundell & Contreras20612 (MEXU). PHENOLOGY. Flowering November-May, the flowers with a slight delicate scent; fruiting May. HABITAT.Guatemala: high forest on rocky hill tops in 'zapotal' (associated with Manilkara trees); Costa Rica: seasonally flooded forest. The specific epithet alludes to the complex leaf structure, notably the presence of paraphyllidia (very conspicuous in Pennington& Poveda 11461) and filiform appendages at the end of the petiole and pinnae rachides which represent vestigial organs on a reduced bipinnate leaf. Other species of Zygia with similar leaves are Z. unifoliolata and Z. pithecolobioidesbut both have capitate inflorescences. Z. bifoliola from Boliva has the same type of leaves and long spicate inflorescences but the inflorescences are longer, up to 40 cm long, with the calyx up to 1 mm long and the corolla about 12 mm long. Zygia cupirensis (Barbosa) L. Rico comb. nov. Pithecellobiumcupirense Barbosa in Caldasia 14: 399 (1986). Type: Venezuela, Miranda, Quebrada Corozal, S of Sta. Cruz, Steyermark& Davidse 116504 (holotype MO; isotype NY). Zygia cuspidata Killip ex L. Rico sp. nov. in sectione Callozygia (Barbosa) L. Rico ponenda, a Z. cuspidata foliolis membranaceis cuspidatisque, pedicellis robustis usque 1 5 mm diametro, spicis florum ante anthesin usque 7 mm latis distinguenda. A Z. lehmannii specie proxima stipulis fugacibus nec per- sistentibus pubescentibus, foliolis maioribus membranaceis nec chartaceis et pedunculo basi bracteis instructo differt. Typus: Colombia, Dryander 2060 (holotypus K; isotypi COL, US). Small unarmed tree up to 6 m tall; young shoots glabrous. Stipules fugaceous. Petiole up to 2 -5 cm long, hirsutulous; leaves with one pair of pinnae; pinna rachis up to 10 cm long, hirsutulous; petiolule up to 2 mm long, apparently without glands, pilose; leaflets 7-9 per pinna (the basal pair usually reduced to a single leaflet), the median ones 4-5 x 1 -8 cm, the basal ones usually - smaller, the terminal ones up to 15 x 4 5 cm, elliptic-oblong or oblong- obovate, cuspidate to apiculate at apex, in the terminal pair oblique to inequilateral at the base, membranaceous, glabrous on both surfaces except for the veins, venation brochidodromous. Flowers in short, dense, cauliflorous racemes; peduncles up to 2 -5 cm long, robust, 1 5 mm diam., strigillose, - with c. 60 persistent bracts at the base of peduncle; racemes c. 2 5 cm long, up to 7 mm wide before anthesis, with very conspicuous white scars when the flowers have fallen; each flower subtended by a linear-triangular, strigillose floral bract, c. 1 -5 mm long and persistent after anthesis; pedicels to 4 mm 4"- long, glabrescent. Calyx cupulate, 2-5 mm long, 5-dentate, without ribs, puberulous. Corolla infundibuliform, up to 2 cm long, 5-lobate, without ribs; lobes up to mm long, puberulent. Stamens c. 60, up to 40 mm long; 3"3 staminal tube c. mm long, included; filaments purple; anthers yellow. 8"5 Ovary mm long, sessile, glabrous; intrastaminal nectary less than 1 -5 mm long.2"6 Legume unknown (Fig. 2G-K). .
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