The nomenclature of Delpya (Sapindaceae)

The name Delpya, with the specific epithet muricata, was used for the first time in 1895 by Pierre under plate 328 of his ‘Flore forestière de la Cochitichine’ (in honour of his draughtsman E. Delpy, who was the illustrator of that flora). The generic name was invalid, however, as in the accompanying text it is mentioned as a synonym under Paranephelium muricatum, the name under which the species is described. In 1910 Radlkofer validated the name Delpya, but made it illegitimate by reducing the name Sisyrolepis, validly described by himself in 1905, to it. Since then, the illegitimate name Delpya has always been used. The synonymy of the genus and of the only species recognized under it, as far as known to me, is as follows: SISYROLEPIS Sisyrolepis Radlk. in F. N. Williams, Bull. Herb. Boiss. II, 5 (1905) 222. — Type: S. siamensis Radlk. Delpya Pierre [Fl. Coch. (1895) t. 328, nom. inval. (Code 1972, Art. 34, 1)] ex Radlk., Not. Syst. 1 (1910) 304, nom. illeg. — Type: D. muricata Radlk. Sisyrolepis muricata (Pierre) Leenh., nov. comb. Paranephelium muricatum Pierre, Fl. Coch. (1895) text accompanying t. 328. — Delpya muricata Pierre [Fl. Coch. (1893) t. 328, nom. inval.] ex Radlk., Not. Syst. 1 (1910) 306, nom. illeg. — Type: Pierre 4113 (P). Sisyrolepis siamensis Radlk. in F. N. Williams, Bull. Herb. Boiss. II, 5 (1905) 222. — Type: Zimmermann 123 (BKF, n.v.). Nephelium pubescens Ridl., J. Str. Br. R. As. Soc. 59 (1911) 88. — Type: Keith 361 (SING) Paranephelium fallax Gagnep., Not. Syst. 13 (1947) 66. — Type: Poilane 14944 (P). Distribution: Thailand and Cambodia.