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Typifications, new synonyms and a new combination in Himatanthus (Apocynaceae)

Andréa Pozetti Spina,1 Volker Bittrich2 & Luiza Sumiko Kinoshita3

1 Departamento de Botânica, Setor de Ciências Biológicas, Centro Politécnico, Universidade Federal do Paraná, C. Postal 19031, Cep. 81531-900 Curitiba, PR, 2 Rua Dr. Mário de Nucci 500, 13083-290 Campinas, SP, Brazil 3 Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, CP 6109, 13083-970 Campinas, SP, Brazil Author for correspondence: Andréa Pozetti Spina, [email protected]

Abstract A revision of the nomenclature of Himatanthus (Apocynaceae) is presented as part of a taxonomic revision. Himatanthus as accepted here comprises nine Neotropical species. The infrageneric and infraspecific taxa proposed by Plumel and Müller, Woodson and Plumel, respectively, are not recognized. Lectotypes are designated for the following names: P. floribunda, P. floribunda var. crassipes, P. lancifolia, P. tarapotensis and P. warmingii. Neotypes are designated for H. rigidus, P. ambigua, P. latifolia and P. lancifolia var. microphylla. An examination of the types of both H. phagedaenicus and H. bracteatus showed that recently these names have been misapplied. Complete synonymies are provided for the nine recognized species of Himatanthus. Also, the new combination H. revolutus (Huber) Spina & Kinoshita is effected.

Keywords Apocynaceae; Himatanthus; ; Plumerieae; nomenclature; ; typifications; synonyms

Received: 16 Apr. 2012; revision received: 8 Aug. 2013; accepted: 30 Oct. 2013. DOI: http://dx.doi.org/10.12705/626.16

INTRODUCTION NOMENCLATURAL PROBLEMS IN HIMATANTHUS Woodson (1938) recognized Himatanthus Willd. as be- ing restricted to South America and distinct from Plume- “Himatanthus” was first described in an unpublished ria L. based on the following morphological characters: large manuscript by Willdenow based on the single species “Hi- and showy bracts, petaloid or foliaceous, caducous, subtended matanthus rigida Willd.”, described from the specimen by numerous minute, pectinate, adaxial glands at the base; Sieber s.n. collected between 1801 and 1807 in the state of calyx lobes very irregular in size, gradually acuminate and Pará, northern Brazil. These two names were later validly eglandular at the tip, or the calyx inconspicuous; ventral loculi published by Willdenow in Roemer & Schultes (1819), the of the anthers not protuberant; and provided with a “Reliqu. Willd. MS.” statement representing direct associa- broad, more or less concentric, papery wing. Based on these tion of Willdenow with both the names and the diagnosis (Art. differences, Woodson (1938) considered Himatanthus to be 46.3 Ex. 12, McNeill & al., 2012). Formerly, Himatanthus was comprised of six species and two varieties and Plumeria of treated as feminine (Willdenow in Roemer & Schultes 1819; seven species, with four taxa restricted to North and Central Woodson 1938) possibly due to the tendency to treat classi- America. cal tree names as feminine (Art. 62.1, McNeill & al., 2012). Recently Himatanthus was revised by Plumel (1990, 1991) Technically, Himatanthus ought to be neuter as it is based on who proposed two subgenera, “H. subg. Obovatae” (H. subg. the Greek word anthos, but it is treated as masculine in ac- Himatanthus) and H. subg. Lanceolatae Plumel; a new spe- cordance with tradition, under the current Code (Art, 62.2(c), cies, H. stenophyllus Plumel; and eight new combinations: McNeill & al., 2012). H. drasticus (Mart.) Plumel, H. fallax (Müll. Arg.) Plumel, Himatanthus remained monotypic, until Woodson (1938) H. tarapotensis (Schum. ex Markgr.) Plumel, H. speciosus transferred several species of Plumeria to Himatanthus; he (Müll. Arg.) Plumel, H. bracteatus var. revolutus (Huber) treated H. rigidus Willd. ex Schult. as a synonym of H. articu- Plumel, H. attenuatus var. malongo (Müll. Arg.) Plumel, latus (Vahl) Woodson. Plumel (1991) incorrectly designated the H. attenuatus var. obtusifolius (Müll. Arg.) Plumel, and type of Plumeria articulata Vahl (≡ Himatanthus articulatus H. obovatus var. velutinus (Müll. Arg.) Plumel. In total, Plumel (Vahl) Woodson) as the type of Himatanthus on the grounds (1990, 1991) recognized thirteen species and eight varieties in that the holotype of H. rigidus Willd., the only species included Himatanthus. In the present paper a revision of the nomencla- in Willdenow’s original circumscription of Himathanthus, had ture of Himatanthus (Apocynaceae) is presented as part of a been destroyed. Plumel’s action has no standing and the neo- taxonomic revision by Spina (2004). type of H. rigidus proposed herein is to be taken as the type of Himatanthus.

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In the protologue of some species of Plumeria Müller- term “holotype” is corrected to “lectotype” (Art. 9.9, McNeill Argoviensis (1860, 1869) and Pilger (1901) did not indicate a & al., 2012). Plumel (1991) treated Plumeria floribunda as a holotype. We designate lectotypes for the following names: synonym of H. lancifolius (Müll. Arg.) Woodson and cited Plumeria floribunda Müll. Arg., Plumeria floribunda var. Saint Hilaire s.n. (Minas Gerais, Casa de Teilha) in P as the crassipes Müll. Arg., Plumeria lancifolia Müll. Arg., Plume- type of P. floribunda. However, the specimen cited by Plumel ria tarapotensis Schum. ex Markgr. and Plumeria warmingii (1991) is not original material for P. floribunda and is to be Müll. Arg. Neotypes are also designated for: Himatanthus taken as a neotype (Art. 9.9, McNeill & al., 2012). For P. flo- rigidus Willd., Plumeria ambigua Müll. Arg., Plumeria lan- ribunda, Müller Argoviensis cited two syntypes: Martius s.n. cifolia var. microphylla Müll. Arg. and Plumeria latifolia and Poeppig 2763 (miscited as 2736 by Müller Argoviensis), Pilger, their original holotypes at B having been destroyed the latter chosen here as the lectotype to supersede Plumel’s in World War II. neotype (Art. 9.19, McNeill & al., 2012).

Himatanthus attenuatus (Benth.) Woodson in Ann. Missouri TYPIFICATIONS AND SYNONYMY Bot. Gard. 25: 197. 1938 (“attenuata”) ≡ Plumeria attenu- ata Benth. in J. Bot. (Hooker) 3: 245. 1841 – Holotype: Himatanthus Willd. in Roemer & Schultes, Syst. Veg., ed. GUIANA. Padawire, s.d., Schomburgk 234 (K !; isotype: 15 bis, 5: XIII–XIV, 221. 1819 – Type: H. rigidus Willd. BM). = Himatanthus subg. Lanceolatae Plumel in Compt. Rend. = Plumeria attenuata var. malongo Spruce ex Müll. Arg. in Séances Soc. Biogéogr. 66(3): 105. 1990, syn. nov. – Type: Martius, Fl. Bras. 6(1): 42. 1860 ≡ Himatanthus attenuatus H. lancifolius (Müll. Arg.) Woodson. var. malongo (Spruce ex Müll. Arg.) Plumel in Compt. – “Himatanthus subg. Obovatae” Plumel in Compt. Rend. Rend. Séances Soc. Biogéogr. 66(3): 118. 1990, syn. nov. Séances Soc. Biogéogr. 66(3): 105. 1990, nom. inval. (Art. – Holotype: BRAZIL. Pará, ad ripas fluminis das trombe- 22.2, McNeill & al., 2012). tas et lacus Guriquiry, Dec 1849, Spruce 230 (M !). Note. – Himatanthus rigidus Willd. was the only species = Plumeria attenuata var. obtusifolia Müll. Arg. in Martius, Fl. included in the original circumscription of Himatanthus, and Bras. 6(1): 42. 1860 ≡ Himatanthus attenuatus var. obtu- therefore, the type of H. rigidus must serve as the type of the sifolius (Müll. Arg.) Plumel in Compt. Rend. Séances name (Art. 40.3, McNeill & al., 2012). Soc. Biogéogr. 66(3): 118. 1990, syn. nov. – Holotype: BRAZIL. Amazonas: in silvis Japurensibus, s.d., Martius Himatanthus articulatus (Vahl) Woodson in Ann. Missouri s.n. (M !, photos F !, MO !). Bot. Gard. 25: 196. 1938 (“articulata”) ≡ Plumeria articu- – “Plumeria malongo” Spruce ex Müll. Arg. in Martius, Fl. lata Vahl, Eclog. Amer. 2: 20. 1798 – Lectotype (desig- Bras. 6(1): 42. 1860, pro syn. nated by Plumel, 1991): SURINAME. 1785, Rohr 35 (C !, – “Plumeria angustiflora” Spruce ex Müll. Arg. in Martius, isolectotypes: C !, photos: F !, MO !). Fl. Bras. 6(1): 42. 1860, pro syn. = Himatanthus rigidus Willd. in Roemer & Schultes, Syst. Note. – Woodson (1938) cited the specimen Spruce 1004 (B, Veg., ed. 15 bis, 5: XIII, 221. 1819 (“rigida”) – Holotype: G, GH, M, P) as isotypes of Himatanthus attenuatus (Benth.) BRAZIL. Pará, 1801–1807, Sieber s.n. (B †; no isotypes Woodson. However Spruce 1004 is not original material of or other original material known) – Neotype (designated H. attenuatus. The specimen Spruce 1004 is associated with here): BRAZIL. Roraima: Vicinity of Dormida, foothills “Plumeria angustiflora Spruce”, a nomen nudum published of Serra da Lua, Jan. 1969, Prance & al. 9487 (R !; isoneo- as a synonym of P. attenuata by Müller Argoviensis (1860). types: G !, M !, MO !, Z !). Plumel (1991) when effecting the combination Himatanthus = Plumeria floribunda Müll. Arg. in Martius, Fl. Bras. 6(1): 40. attenuata var. obtusifolia, incorrectly cited the holotype as 1860, syn. nov. – Lectotype (designated here): BRAZIL. Maguire, Cowan & Wurdack 30764 (NY). Alto Amazonas, 1831, Poeppig 2763 [miscited as 2736 by Müller Argoviensis: 41] (NY !; isolectotype F ! [fragment]). (A. DC.) Woodson in Ann. Missouri = Plumeria sucuuba Spruce ex Müll. Arg. in Martius, Fl. Bras. Bot. Gard. 25: 200. 1938 (“bracteata”) ≡ Plumeria brac- 6(1): 40. 1860 ≡ Himatanthus sucuubus (Spruce ex Müll. teata A. DC., Prodr. 8: 394. 1844 – Lectotype (designated Arg.) Woodson in Ann. Missouri Bot. Gard. 25: 198. 1938, by Woodson, 1938): BRAZIL. Bahia, 1820, Blanchet 13 (“sucuuba”), syn. nov. – Holotype: BRAZIL. Amazonas: (P; isolectotype: G !, photos: F !, MO, NY !, RB !). prope Barra do Rio Negro, Oct. 1851, Spruce 1848 (G !; = Plumeria ambigua Müll. Arg. in Martius, Fl. Bras. 6(1): 37. isotypes: BM !, BR !, F !, K !, NY !, P !). 1860, syn. nov. – Holotype: BRAZIL. Sellow s.n., (B †, = Plumeria microcalyx Standl. in Publ. Field Mus. Nat. Hist., photos F !, INPA !, RB !) – Neotype (designated here): Bot. Ser. 4: 254. 1929 – Holotype: PANAMÁ. Permé San BRAZIL. Alagoas: Penedo city, Jan. 1993, Pirani & Kal- Blas Coast, Apr. 1928, Cooper 642 (F !, photos in F !, lunki 2691 (SPF !; isoneotype: NY !). INPA !; isotypes: G ! [fragments], K !, NY !). = Plumeria floribunda var. acutifolia Müll. Arg. in Martius, Fl. – “Plumeria paraensis” Huber in sched. (MG), nom. nud. Bras. 6(1): 41. 1860, syn. nov. – Holotype: BRAZIL. Minas Note. – Plumel (1991) indicated Rohr s.n. 1785 in C as Gerais, s.d., Saint-Hilaire 42 (P !; isotype: F !). holotype of Plumeria articulata. Plumel’s use of the incorrect = Plumeria floribunda var. calycina Müll. Arg. in Martius, Fl.

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Bras. 6(1): 41. 1860, syn. nov. – Lectotype (designated by Himatanthus drasticus (Mart.) Plumel in Compt. Rend. Séances Plumel, 1991): BRAZIL. Minas Gerais, s.d., Saint-Hilaire Soc. Biogéogr. 66(3): 108. 1990 ≡ Plumeria drastica Mart. 2186 (P !, isolectotypes: F !, LE !, P !). in Spix & Martius, Reise Bras. 2: 547. 1828 – Holotype: = Plumeria floribunda var. crassipes Müll. Arg. in Martius, BRAZIL. Bahia: Caetité, s.d., Martius s.n. (M !, photos: Fl. Bras. 6(1): 40–41. 1860 – Lectotype (designated here): F !, MO !). BRAZIL. Minas Gerais, s.d., Schüch s.n. (W No. 26538 !; = Plumeria fallax Müll. Arg. in Martius, Fl. Bras. 6(1): 38. isolectotype: W No. 46539 !). 1860 ≡ Himatanthus fallax (Müll. Arg.) Plumel in Compt. = Plumeria lancifolia Müll. Arg. in Martius, Fl. Bras. 6(1): Rend. Séances Soc. Biogéogr. 66(3): 109. 1990 – Lecto- 41. 1860 ≡ Himatanthus lancifolius (Müll. Arg.) Woodson type (designated by Plumel, 1991): BRAZIL. Pará: San- in Ann. Missouri Bot. Gard. 25: 200. 1938 (“lancifolia”), tarém, Nov.–Mar. 1849–1850, Spruce 231 (G !; isolecto- syn. nov. – Lectotype (designated here): BRAZIL. Serra types: F !, G ! M !, NY !). do Mar between São Paulo and Rio de Janeiro: collibus Note. – The incorrect term “holotype” used in Plumel’s siccis umbrosis, s.d., Riedel 596 (LE !; isolectotype: LE !). (1991) typification is corrected to lectotype based on Art. 9.9 = Plumeria lancifolia var. microphylla Müll. Arg. in Martius, of the ICN (McNeill & al., 2012). Fl. Bras. 6(1): 41. 1860, syn. nov. – Holotype: Brasilia meridionali, s.d., Sellow, s.n. (B †) – Neotype (designated (Müll. Arg.) Woodson in Ann. Mis- here): BRASIL. Bahia: Maraú, rodov. BR 030, 3 km south souri Bot. Gard. 25: 201. 1937 (“obovata”) ≡ Plumeria of Maraú, Feb. 1979, Mori & al. 11447 (NY !; isoneotype: obovata Müll. Arg. in Martius, Fl. Bras. 6(1): 40. 1860 – Z !). Lectotype (designated by Plumel, 1991): Brazil, habitat in = Plumeria lancifolia var. major Müll. Arg. in Martius, Fl. campis siccis, s.d., Riedel 1082 (P n.v.; isolectotype: G n.v.). Bras. 6(1): 41. 1860, syn. nov.– Lectotype (designated by = Plumeria hilariana Müll. Arg. in Martius, Fl. Bras. 6(1): Plumel, 1991): BRAZIL. Rio de Janeiro, in Morro Corco- 39. 1860 – Holotype: BRAZIL. Minas Gerais, 1816–1821, vado, s.d., Guillot s.n. (P !). Saint-Hilaire s.n. (P !, photos: F !; isotype F ! [fragments]). = Plumeria martii Müll. Arg. in Martius, Fl. Bras. 6(1): 37. = Plumeria warmingii Müll. Arg. in Vidensk. Meddel. 1860, syn. nov. – Holotype: BRAZIL. Bahia: Feira de Con- Naturhist. Foren. Kjøbenhavn 1869: 99. 1869 – Lecto- ceição, caatinga, s.d., Martius s.n. (M !, photos: MO !, BR !). type (designated here): BRAZIL. Minas Gerais: Lagoa = Plumeria speciosa Müll. Arg. in Martius, Fl. Bras. 6(1): Santa, s.d., Warming s.n. (C !, photos: F !, MO !, INPA !; 36. 1860 ≡ Himatanthus speciosus (Müll. Arg.) Plumel in isolectotypes: F !, C !; ). Compt. Rend. Séances Soc. Biogéogr. 66(3): 114. 1990, = Plumeria latifolia Pilg. in Bot. Jahrb. Syst. 30(2): 183. 1901 syn. nov. – Holotype: BRAZIL. habitat circa Bahiam, s.d., – Holotype: BRAZIL. Mato Grosso, Cuiabá, Cerrado, Feb. Lhotsky, s.n. (B †, photos in F !, INPA !, MO !) – Neotype 1899, Pilger 198 (B †, photos: F !, INPA !, MO !, RB !) – (designated by Plumel, 1991): Guyane, Saül, montagne Neotype (designated here): BRAZIL. Mato Grosso, Cha- la Fumée, 400 m, forêt humide non inondée, Aug. 1987, pada dos Guimarães, road Buriti to Agua Fria, Oct. 1973, Allorge & Rombold 335 (P !; isoneotypes: P !, NY !, CAY Prance & al. 18947 (NY !; isoneotype: Z !). n.v.). = Plumeria oligoneura Malme in Ark. Bot. 21A(6): 6. 1927 – Notes. – Plumeria ambigua: Sellow s.n. (B) was likley a Lectotype (designated by Woodson, 1938): BRAZIL. Mato unicate and represented the only original material for Plumeria Grosso: Santa Anna da Chapada, 1902, Malme 2375 (S !; ambigua. As we were unable to locate it, we assume it was isolectotype: S !). destroyed during World War II, thus making neotypification = Plumeria puberula Müll. Arg. in Martius, Fl. Bras. 6(1): necessary. 39. 1860 ≡ Himatanthus obovatus var. puberulus (Müll. Plumeria floribunda var. crassipes: Plumel (1991) desig- Arg.) Woodson in Ann. Missouri Bot. Gard. 25: 201. 1938 nated St. Hilaire 2186b in P as lectotype of this variety. As this (“H. obovata var. puberula”), syn. nov.– Lectotype (des- specimen is not part of the original material cited by Müller- ignated by Plumel, 1991): BRAZIL. Minas Gerais, 1816– Argoviensis (1860), Plumel’s designation is superseded by the 1821, Saint-Hilaire s.n. (P No. P00646527 !; isolectotypes: designation of Schüch s.n. (W), one of the two syntypes cited P Nos. P00646526 ! & P00646528 !, F !). by Müller-Argoviensis (1860). = Plumeria velutina Müll. Arg. in Martius, Fl. Bras. 6(1): 38. Plumeria lancifolia: Woodson (1938) indicated Peckolt 58 1860 ≡ Himatanthus obovatus var. velutinus (Müll. Arg.) (P) as “holotype” of Plumeria lancifolia. and Plumel (1991) fol- Plumel in Compt. Rend. Séances Soc. Biogéogr. 66(3): lowed this conclusion. However, this specimen is not original 108. 1990, syn. nov. – Holotype: BRAZIL. Pará, s.d., s.col. material of P. lancifolia but a syntype of Plumeria lancifolia (herb. Lusit. P !; isotype: P !, photos: F !, INPA !). var. major Müll. Arg. Here we select one of the syntypes (Reidel Note. – Plumel (1991) indicated Riedel 1082 as “holotype” 595) of P. lancifolius cited by Mueller Agroviensis (1860) as and this is to be taken as lectotype (Art. 9.9, McNeill & al., lectotype (Art. 9.19, McNeill & al., 2012). 2012) of Plumeria obovata. Unfortunately we have not located Plumeria lancifolia var. major: The incorrect use of “holo- either specimen in P and G and the type images available on- type” by Plumel (1991) is corrected to “lectotype” (Art. 9.9, line on the websites of these herbaria also do not include Rie- McNeill & al., 2012). del 1082. We cannot exclude the possibility that Plumel erred when asserting that specimens Riedel 1082 are kept in one or

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both of these herbaria. The locality he gave (“Lagoa Santa”), holotype, was destroyed in World War II. The two specimens in is not mentioned in the protologue, and this is the place where G (both with a label indicating their origin from the herbarium E. Warming collected intensely. in Berlin) are thus probably the only isotypes and are here designated by us as lectotype and isolectotype respectively of Himatanthus phagedaenicus (Mart.) Woodson in Ann. Mis- H. tarapotensis. The specimen Ducke 21607 (RB), indicated souri Bot. Gard. 25: 199. 1937 (“phagedaenica”) ≡ Plume- by Plumel (1991) as “holotype”, is one of several paratypes ria phagedaenica Mart. in Spix & Martius, Reise Bras. cited by Markgraf. 3: 1128. 1831 – Holotype: BRAZIL. Amazonas: Manaus, Cachoeira prope Barra do Rio Negro, Martius 2778 (M !, photos: F !, INPA !, MO !, RB !). ACKNOWLEDGEMENTS – “Plumeria phagedaenica var. angustifolia Mart.” in sched. (M), nom. nud. We are most grateful to the curators of the herbaria for loaning Himatanthus and Plumeria collections, and especially the curator Himatanthus revolutus (Huber) Spina & Kinoshita, comb. of the herbarium Unicamp (UEC). We gratefully acknowledge the nov. ≡ Plumeria revoluta Huber in Bull. Soc. Bot. Genève, corrections and suggestions of two reviewers and especially wish to ser. 2, 6: 200. 1915. ≡ Himatanthus bracteatus var. revo- thank the nomenclature editor, Gerry Moore, for his valuable input. lutus (Huber) Plumel in Compt. Rend. Séances Soc. Bio- This paper is a part of the Ph.D. thesis of A.P. Spina prepared in the géogr. 66(3): 114. 1990 – Holotype: BRAZIL. Amazonas: “Programa de Pós-Graduação em Biologia Vegetal”, Institute of Biol- habita na região Fl. Arirambae “Campinarana”, Dec. 1906, ogy, Unicamp, and supported by a grant from CAPES. Ducke s.n (G !, photos: INPA !, MO !, NY !). = Himatanthus stenophyllus Plumel in Compt. Rend. Séances Soc. Biogéogr. 66(3): 116. 1990, syn. nov. – Holotype: LITERATURE CITED BRAZIL. Amazonas: Manaus, Dec. 1983, Plumel & Coêlho 8391 (P !; isotype: INPA !). Müller-Argoviensis, J. 1860. Apocynaceae. Pp. 1–196, pl. 11–12 in: Note. – Plumel (1991) designated Ducke 11399 in RB as Martius, C.F.P. von (ed.), Flora brasiliensis, vol. 6(1). Munich. a neotype for Plumeria revoluta Huber. Plumel did not see Müller-Argoviensis, J. 1869. Plumeria warmingii Müll. Arg. Pp. the specimen of Ducke MG8039 in G, which is cited in the 99–100 in: Warming, E. (ed.), Symbolae ad floram Brasiliae cen- tralis cognoscendem. Vidensk. Meddel. Dansk Naturhist. Foren. protologue of Plumeria revoluta Huber as the holotype. Given Kjobenhavn. 1869: 79–116. the presence of a holotype, Plumel’s (1991) neotypification has McNeill, J., Barrie, F.R., Buck, W.R., Demoulin, V., Greuter, W., no standing. Hawksworth, D.L., Herendeen, P.S., Knapp, S., Marhold, K., Prado, J., Prud’homme van Reine, W.F., Smith, G.F., Himatanthus semilunatus Markgr. in Acta Bot. Venez. 6(1– Wiersema, J.H. & Turland, N.J. (eds.) 2012. International Code 4): 73. 1972 – Holotype: . Amazon Federal of Nomenclature for algae, fungi, and (Melbourne Code) adopted by the Eighteenth International Botanical Congress Mel- Territory, southeast of Cerro Yapacana, Apr. 1970, Steyer- bourne, Australia, July 2011. Regnum Vegetabile 154. Königstein: mark & Bunting 102975 (Z !; isotypes: B !, MO !, S !, U n.v.). Koeltz Scientific Books. Pilger, R. 1901 (“1902”). Beitrag zur Flora von Mattogrosso. Apocyna- Himatanthus tarapotensis (Schum. ex Markgr.) Plumel in caeae. Bot. Jahrb. Syst. 30(2): 183–184. Compt. Rend. Séances Soc. Biogéogr. 66(3): 112. 1990 Plumel, M.M. 1990. Repartition geographique du genre Himatanthus ≡ Plumeria tarapotensis Schum. ex Markgr. in Notizbl. en Amerique tropicale. Compt. Rend. Séances Soc. Biogeogr. 66(3): 103–127. Bot. Gart. Berlin-Dahlem 11: 339. 1932 – Lectotype (des- Plumel, M.M. 1991. Le genre Himatanthus (Apocynaceae) révison ignated here): PERU. Dept. Loreto, Oct. 1902, Ule 6473 taxonomique. Bradea 5(suppl.): 1–118. (G No. G00164786 !; isolectotype: MG !). Roemer, J.J. & Schultes, J.A. 1819. Systema vegetabilum, ed. 15 bis, Note. – Plumel (1991) indicated as a “holotype” of vol. 5. Stuttgart: sumtibus J.G. Cottae. H. tarapotensis a specimen of Ducke 21607 in RB, but in the Spina, A.P. 2004. Estudos taxonômico, micro-morfológico e filoge- protologue Markgraf indicated Ule 6473 as “Original der Art” nético do gênero Himatanthus Willd. ex Schult. (Apocynaceae: Rauvolfioideae – Plumerieae). Tese de Doutorado, Universidade (= original of the species), which we take to be an indication of Estadual de Campinas, SP, Brasil. the type. Markgraf worked in that time (1932) in Berlin, where Woodson, R.E. 1938. Studies in the Apocynaceae. VII - An evaluation the top set of the collections of E. Ule were kept. We therefore of the genera Plumeria L. and Himatanthus Willd. Ann. Missouri assume that Markgraf has seen a specimen of Ule 6473 col- Bot. Gard. 25: 189–224. http://dx.doi.org/10.2307/2394479 lected in Tarapoto at B and that this material, the supposed

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