1914: Purple Inflorescence Bulbophyllum*"Bulbophyllum purpureum" Thwaites 1861*"Bulbophyllum pusillum" Thouars 1822*"Bulbophyllum pustulatum" Ridl.
1914* "Bulbophyllum purpureum" Thwaites 1861* "Bulbophyllum pusillum" Thouars 1822* "Bulbophyllum pustulatum" Ridl.