Verbatim text: Bywater, M. and G. E. Wickens. 1984. New World species of the genus Crassula. Kew Bull. 39: 699–728.
Author: Bywater, M., Wickens, G.E.
Year: 1984
Title: New World species of the genus Crassula
Journal: Kew Bull
Volume: 39
Pages: 699–728