BioStor
 | Notes on the Flora of Kung Ping Shan, Kwangtung F P Metcalf (1945) Journal of the Arnold Arboretum 26: 197-205 |
 | Taxonomic study of the Cicadellinae (Homoptera: Cicadellidae). Part 1. Proconiini David A Young (1968) Bull. United States Nat. Mus. 261: 1-287 |
 | The subdivision of Asclepiadaceae A El-Gazzar and M K Hamza (1980) Phytologia 45: 1-16 |
 | Notes on the Asclepiadaceae of China M G Gilbert and W D Stevens (1995) Novon 5: 1-16 |
 | Notes on the Marsdenieae (Asclepiadaceae)--A new, unusual species of Hoya from Northern Borneo R Omlor (1996) Novon 6: 288-294 |