Heterostemma xuansonense Tran & Kim (2010: 367)

Rodda, Michele, 2016, Checklist and typification of Heterostemma (Apocynaceae, Asclepiadoideae, Ceropegieae), Phytotaxa 263 (1), pp. 1-17 : 13

Heterostemma xuansonense Tran & Kim (2010: 367) [13 Sep 2010]

TYPE:— VIETNAM. Phu Tho, Thanh Son, Xuan Son , 2 July 2003, V.X. Phuong 6360 (holotype MO n.v.; isotype, HN, n.v.)

Dregea stellaris (Ridley) Ridley (1923: 387) ≡ Marsdenia stellaris Ridley (1914: 40) ≡ Dittoceras stellaris (Ridley) Bullock (1957: 513) [23 Feb 1957]

TYPE:— MALAYSIA, Selangor, Gunong Mengkuang Lebah, Jan 1913, Dyak collectors s.n. (holotype K [K000894719])

Notes: — Marsdenia stellaris was described based on a single specimens collected on Gunong Mengkuang, Selangor, Malaysia and deposited at K. Specimen [K000894719] is annotated as ‘type’ in Ridley’s hand and is therefore the holotype for D. stellaris . The specimen has a label in Ridley’s hand that bears the name of N.C. Robinson. The specimen was not collected by Robinson but by local Dyak collector as indicated by Robinson himself ( Ridley 1914: 28). The taxon is here treated because it was combined in Dittoceras by Bullock (1957: 513), however a new combination in Heterostemma is not needed because the correct name is Dregea stellaris (Ridley) Ridley.