?Nov. Gen. Pl. [Thunberg] 3: 60, 1783?. Submitted.

?Encycl. (Lamarck) 2: 329, 1786?. Submitted.

?Syst. Veg. (ed. 16) [Sprengel] 3: 884, 1826?. Submitted.

?Euphorb. Gen. 38: 11, 1824?. Submitted.

?Hooker's Icon. Pl. 29: t. 2801, 1906?. Submitted.

?Nomencl. Bot. (Steudel) 286, 1821?. Submitted.

?Mus. Bot. 4: 120, 1869?. Submitted.

?Hist. Pl. (Baillon) 5: 116, 1874?. Submitted.

?Kew Bull. 20: 394, 1967?. Submitted.

?Kew Bull. 20: 394, 1967?. Submitted.