4. Millettia erythrocalyx Gagnepain (1913: 356)

Type: — THAILAND. La-khon [Nakhon Phanom Province], de Bang-muc a La-khon, C. Thorel 3102 (first-step lectotype designated by Craib 1928: 389, second-step lectotype designated here: P 02141802 image!; isolectotypes: BM000997281!, BO-1734993!, E00275468!, K000848792!, P 02141803 image!) .

= Millettia verruculosa Gagnepain (1913: 366) . Type: — LAOS. plateau d’Attopeu, February 1877, F. J. Harmand 1111 (lectotype designated here: P02141798 image!; isolectotype: P02141797 image!).

Gagnepain (1913) cited three collections (C. Thorel 3120, F. J. Harmand 357 and L. Pierre 1034) in the protologue of M. erythrocalyx, of which Thorel 3120 was indicated by Craib (1928) as type (first-lectotype, see Art. 9.17 Ex. 14, Turland et al. 2018). Lôc & Vidal (2001) indicated Thorel 3102 (not 3120) from P as the lectotype, but this lectotypification was made after 1 January 2001 and did not use the phrase “designated here” or an equivalent. Thus, the lectotypification by Lôc & Vidal (2001) was not effective according to the Art. 7.11 (Turland et al. 2018). We traced two specimens of Thorel 3102 in P, and designate the specimen (P02141802) as the second-step lectotype of M. erythrocalyx . In addition, in the protologue of M. verruculosa Gagnepain (1913) just cited a single gathering (F. J. Harmand 1111). Lôc & Vidal (2001) indicated that Harmand 1111 (P) is its “ holotype ”, but this typification was not effective (see Art. 7.11). There are two specimens of this collection in P (as syntypes according to Art. 40.2 Ex. 3), and we designate one of them (P02141798) as the lectotype of M. verruculosa due to its better conserved status.