Siphocampylus lorentzii E. Wimmer (1931: 85) .

Lectotype (designated here):— Bolivia australis, lg. K. Fiebrig nº 2463a (B 10 0242583!, isolectotype: B 10 0242582!).

Other original material examined: — Argentinia pr. San Bartolo lg. P.G. Lorentz nº 697 (Herb. Berl.) (B 10 0366429!, F 0BN030240!) .

Note:— Two syntypes were cited in the protologue of Siphocampylus lorentzii: ‘ K. Fiebrig nº 2463a ’ and ‘ P. G. Lorentz nº 697 ’. We could not find any material at W, the herbarium where Wimmer worked. However, three specimens corresponding to the two collections were found at B (P. G. Lorentz 697 [B 10 0366429] and Fiebrig nº 2463a [B 10 0242582 and B 10 0242583]). We designate here the specimen B 10 0242583 as lectotype because it is representative of the species, matches with the protologue information, is preserved in good condition, is a complete collection with roots and whole inflorescences, and includes a label with an identification made by Wimmer.