Peltophorum dasyrhachis (Miq.) Kurz in J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45: 128. 1876 .

Rogers, S. Zachary & Thulin, Mats, 2012, Peltophorum dasyrhachis (Miq.) Kurz: a new record of a Southeast Asian species of Fabaceae (Caesalpinioideae) naturalized in northwestern Madagascar, Candollea 67 (1), pp. 145-147 : 145

Peltophorum dasyrhachis (Miq.) Kurz in J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45: 128. 1876.

Ξ Caesalpinia dasyrhachis Miq. in Fl. Ned. Ind., Eerste Bijv. 2: 292. 1861. Ξ Brasilettia dasyrhachis (Miq.) Kuntze in Revis. Gen. Pl. 1: 164. 1891.

Lectotypus (designated here): INDONESIA. Sumatra: Mangala, Lampongs , s.d., fl., Teijsmann 4547HB ( U [ U0003297 ]!) .

Nomenclatural notes. – The authorship of Peltophorum dasyrhachis has been cited incorrectly in the literature (most often as “(Miq.) Baker” or “(Miq.) Kurz ex Baker”, even in recently published treatments (e.g. RUDD, 1991; DEZHAO & al., 2010). The error stems from authors overlooking KURZ (1876) as the first person to validly transfer the basionym Caesalpinia dasyrhachis Miq. to Peltophorum , and consequently recognizing a superfluous combination published by BAKER (1878). Kurz’s article was issued on 14 November 1876, whereas Baker’streatment was not published until July1878. Baker’s publication further confused the situation by modifying the original orthography of the epithet and acknowledging Kurz via the citation “ P. dasyrachis, Kurz MSS.” Miquel’s original spelling should be retained as stipulated in Art. 60.1 of the ICBN ( MCNEILL & al., 2006).

Typification. – In the protologue the provenance of the species was given as “Sumatra orient. in prov. Lampong, prope Mengala, Kebang (T.)”. LARSEN & al. (1980) and later HOU (1996) cited an unnumbered Teijsmann duplicate from Sumatra at L as the holotype and a K sheet as an isotype, but unique identifiers (e.g.,accession number,specific locality) for the types were not provided in either publication. We have examined two unnumbered Teijsmann sheets at L [L0019200, L0019201] with red “Type” stickers. Both were annotated by Ding Hou in 1993 as Peltophorum dasyrhachis , but the precise type status (e.g., holotype, isotype, syntype) was not indicated on either sheet. Sheet [L0019201] bears a handwritten label including the general locality “Lampongs” and a “Herbarium Dr. J. K. Hasskarl” stamp, whereas [L0019200] has a typewritten label noting “Sumatra” and “Ex Herbario Miquel”. None of the annotations on either L sheet belong to Miquel. Conversely, we have examined two numbered Teijsmann collections from Sumatra at U that were originally part of Miquel’s private herbarium (Teijsmann 4322HB [U0003298]; Teijsmann 4547HB [U0003297]). Both of the collections were annotated by Miquel as Caesalpinia dasyrhachis . The original handwritten label of [U0003298] was annotated as “Kebang, Lampongs”, whereas the label of [U0003297] was annotated as “Mangala, Lampongs.” The labels and plants of the two Teijsmann collections at U match the information given in the protologue, suggesting that at least two different collections (i.e., syntypes) were used for the protologue description. The U sheets are treated as syntypes and the two L sheets may represent duplicates of the U collections, or could even be additional syntype material. No effectively published lectotypification statementshave been found for Caesalpinia dasyrhachis . Teijsmann 4547HB [U0003297] includes flowers and is in good condition and is designated here as lectotype. The other syntype is in fruit.