Hoya esculenta Tsiang 1936

Type description:

            In Sunyatsenia 3 (1936) 176-177. Tsiang. Hoya esculenta (Rumphius) Tsiang, comb. nov. Sussuela esculenta Rumphius, Herb. Amb. 5: 467, t. 175, f, 2, 1747.
Hoya diversifolia Blume, Bijdr. 1064. 1826; G. Don Gen. Syst. 4: 127, 1838; Decne. in DC., Prodr. 8: 636. 1844; Hook f., Fl. Brit. Ind. 4: 61. 1883; Ridley, Fl. Malay Penins. 2: 396. 1923.
            Hoya orbiculata Wall. ex Wight, Contr. Bot. Ind. 36. 1834; G. Don. Gen. Syst. 4: 125. 1838: Decne. in DC., Prodr. 8: 635. 1844.
Malay Peninsula: Tanjong, Md. Nur 21757, April 26, 1929.
Distribution: Burma: Malaya.
            This and the following species (H. liangii) have penninerved leaves and exterior angle of the coronal-lobes rotundate or very obtuse. The plate of Sussuela esculenta shows that the leaves are of the same shape but much smaller. Costantin’s figure in Leconte, Fl. Gen. Indo-Chine 4: 131, fig. 18, 6-8, shows a plant of doubtful status, so for time being, I eliminate the record for Indo-China.