Heterostemma brownii Hayata (1911: 199)

Rodda, Michele, 2016, Checklist and typification of Heterostemma (Apocynaceae, Asclepiadoideae, Ceropegieae), Phytotaxa 263 (1), pp. 1-17 : 6

Heterostemma brownii Hayata (1911: 199) (as ‘browni’)

TYPE:— TAIWAN, Shintiku , Taitoga. June 1905, T. Kawakumi & U. Mori 1373 (syntypes not found) ; TAIWAN, Taiko , August 1908, B. Hayata & U. Mori 41 (syntype not found) .

Notes: — Two specimens, Kawakumi & Mori 1373, Hayata & Mori 41 were indicated in the protologue of H. brownii ( Hayata 1911: 199) . No duplicates of the two syntypes have been found at TI or in Taiwanese herbaria (Tetsuo Ohi- Toma pers. comm.). Collection Kawakami & Mori 1347 (TI) is the only material collected by Hayata of H. brownii before the publication of the taxon, however it is sterile and a neotype of H. brownii should be carefully selected among more recent fertile collections once the genus is revised.

Heterostemma chrysanthum (Hasskarl) Boerlage (1899: 438) [Jan 1899] ≡ Symphysicarpus chrysanthus Hasskarl (1857: 102)

TYPE:— INDONESIA, Java, Banjuwangi, 1854, J.E. Teysmann (not found)

Notes: — Hasskarl (1857: 438) indicated that Symphysicarpus was based on a specimen from Java collected by Teysmann in 1854. No suitable specimen has been found and a neotype will have to be selected when Heterostemma is revised.