Phanera involucrans (Gagnep.) Tk.Yamam. & Tagane

Yamamoto, Takenori, Souladeth, Phetlasy, Soutakone, Khammon, Kongxaisavath, Deuanta & Tagane, Shuichiro, 2024, A new species and a new record of Phanera (Fabaceae) in Laos, with a lectotypification and a new combination for P. involucrans, Phytotaxa 640 (2), pp. 81-89 : 82-83

Phanera involucrans (Gagnep.) Tk.Yamam. & Tagane , comb. nov.

Basionym: Bauhinia involucrans Gagnep., Bull. Mus. Natl. Hist. Nat., Sér. 224: 313 (1952). Type:— VIETNAM. Dong Nai: station agricole de Blao , 23 May 1933, E. Poilane 22502 (lectotype P00798548 image!, first-step designated by Larsen & Larsen (1980), second step designated here; isolectotypes AAU image!, E00885434 image!, K001092984 image!, L0018738 image!, P00798547 image!) .

Notes 1: —In the protologue of Bauhinia involucrans , the gathering Poilane 22502 was cited by Gagnepain (1952). We traced six sheets of this gathering stored in five herbaria. In citing "TYPE: Poilane 22502, P", Larsen & Larsen (1980) specified the herbarium as P, and such citation corresponds to the designation of the lectotype according to the Article 7.11 of International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) ( Turland et al. 2018). However, in P, there are two sheets of Poilane 22502 (P00798547 & P00798548), and the existence of more than one sheet warrants a subsequent lectotypification in accordance of the Art. 9.17 of the Shenzhen Code. Therefore, the specimen sheet with barcode P00798548 is designated here as the lectotype, because it is well preserved, congruent with the protologue by Gagnepain (1952), and has pencil sketches of dissected flower in detail, which are useful for its identification and taxonomy.

Notes 2: —Although this species has been treated as a member of Bauhinia s.l. ( Gagnepain 1952, Larsen & Larsen 1980, POWO 2023), it should be placed in the genus Phanera , because of its habit of woody liana with tendrils, non-elongated hypanthia, calyx splitting into (4–)5 lobes at anthesis, and 3 fertile stamens per flower, and thus here the new combination is proposed.

New species