Hoya kastbergii Kloppenb.

Fraterna 16 (4): 1 (Anonymous 2003).

Type material

Holotype MALAYSIA • Sarawak, Bau; I.S.A. Kastberg s.n. leg.; UC, missing.

Neotype (designated by Rodda 2017) MALAYSIA • Sarawak, Bau, near Mulu National Park H.Q.; 23 Mar. 1981; I.S. Collenette 2357 leg.; L2726571.

Isoneotype MALAYSIA • Same data as for the neotype; K.