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Walker, Colin
(2023).
URL: https://www.cactusandsucculentreview.org.uk/
Abstract
Madagascar is home to about 20 succulent species of Ceropegia of which all but one is endemic to the island. The most remarkable of these are the 10 species with two distinct growth forms and hence are referred to as being dimorphic. The stem segments of the vegetative phase of growth are mostly creeping but when the plants switch to the reproductive phase the growth form changes completely and the stems become thin, round, wiry, twining, growing up to several metres in length. These species have been classified as Ceropegia section Dimorpha.
Ceropegia armandii was named by Werner Rauh in commemoration of Armand Ratokazafy who first found it. This species is currently still only known from its type locality in southwest Madagascar.
The growth and flowering of this species in cultivation is described and illustrated. The vegetative phase has an underground tuber with creeping very succulent stems. The longest of the two synflorescences grew to be about 1.9m long with very thin and wiry stems. Along the length of these stems individual inflorescences were produced. Individual flowers are small, just under 2cm long with a rounded, bulbous base and narrow pale corolla lobes fused at their tips and hence are typical of the “lantern flower” of a Ceropegia.
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