Part 9 is an illustrated review of Pseudolithos Bally, including a key to species and descriptions. Part 10 discusses the status of Caralluma dodsoniana Lavranos, proposing the hypothesis that it represents an intergeneric hybrid between Pseudolithos cubiformis and Echidnopsis scutellata.
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Bradleya
Vol. 1990 • No. 8
December 1990
Vol. 1990 • No. 8
December 1990