Sophora tonkinensis Gagnep.

Mattapha, S., Suddee, S., Khammongkol, K. & Kiewbang, W., 2024, Taxonomic notes on Sophora phulangkaensis, a new species of Sophora (Fabaceae - Sophoreae) from Thailand based on morphological and molecular evidence, Blumea 69 (2), pp. 130-138 : 137

Sophora tonkinensis Gagnep.

Sophora tonkinensis Gagnep. (1914) 18; (1916) 502; Thuân, Phon & Niyomdham (1987) 18. — Cephalostigmaton tonkinensis (Gagnep.) Yakovlev (1967) 47. — Lectotype (designated here): B. Balansa 1297 (lecto P [P01817818]!; isolecto: P [P01817819]!, P01817820]!), Vietnam, Tonkin, 3 July 1885. Other syntypes: H.F. Bon 755 (P [P02755343!, P02755344!]), Vietnam, Hao Nho, in monte Trui, 10 Sept. 1881; 6040 (P [P02755341!, P02755345!]), Vietnam, Tonkin, without collection date; J. Cavalerie 3684 (P [P02755339!, P02755340!]), China, Kouy-tchéou, Tin-fan, June 1909.

Sophora subprostrata Chun & T.C.Chen in Chun & How (1958) 30. — Syntypes: S.P. Ko 55680 (fr.) (herbarium not known), China, Kwangsi , Tsinghsi Hsien , Piaolin Hsiang, Luangshan, 1 Sept. 1935; C. Wang 40917 (fl.) (herbarium not known), China Kwangsi, Nantan Hsien, Lihu Hsiang, 26 June 1937 .

Note — In the protologue of S. tonkinensis , three syntypes of B. Balansa 1297 at P were traced. The first sheet [P01817818] has numerous leaflets, two inflorescences with flowers and dissected flowers, but no fruits. The latter two sheets [P01817819, P01817820] bear leaflets and inflorescences with young fruits. Therefore, we designate the first sheet as the lectotype. Since we are unable to trace the types of S. subprostrata , we refrain from a lectotypification.