What plants are related to Adromischus?
genus Adromischus is part of the family Crassulaceae, one of very few families
consists almost entirely of succulent plants. For a
view about how the Crassulaceae
other families as part of the Saxifragales
and other higher orders of seed plant
classification, visit the
by P. F. Stevens.
the Crassulaceae was split into
subfamilies (Berger 1930). Recent molecular studies
reveal seven clades
(Mark Mort et al. in Am. J. Bot. 88:1 (2001) p. 76-91). The
Southern African genera Cotyledon
and Tylecodon are most closely related to Adromischus,
with the Eastern African and Madagascan genera Bryophyllum, Kalanchoe
and Kitchingia completing the
the genus Cotyledon Linnaeus
described first. Adromischus
(1852) was not widely used for a long time and the
earlier species were
described as Cotyledon. Included
were a few species of Tylecodon Tölken
(1978), before it was separated.
with 29 described species, contains squat to
spreading, dwarf to small
subshrubs with perennial, alternate leaves and a
spike-like inflorescence with erect, spreading
flowers (except pendant
in A. phillipsiae). Commonly called
"Kleinplakkies" or "Bontplakkies" in Afrikaans.
The widespread Cotyledon orbiculata, about
cm.) high in the Little Karoo, W. Ladismith.
now with only 11 species, contains small, woody
shrubs with opposite
(or tri-merous), perennial leaves and a branched
pendent flowers when open. Their centre of diversity
is in the Eastern
Cape but one species (C. barbeyi) has a
distribution from South Africa to East Africa.
Generally, they are
rather large for pot cultivation where heating is
called "Plakkies" in Afrikaans and some are known to
be poisonous to
Tylecodon longipes, in a 2" (5 cm.)
pot, from the TL, Kloof of Caves, Richtersveld.
It flowers in the summer after the leaves have
Tylecodon with about 45 species,
contains pachycaul, dwarf geophytes to shrubs (to
deciduous, alternate leaves and a branched
inflorescence with usually
erect flowers when open. All are from Namibia and
South Africa, with a
centre of diversity in Namaqualand. New species are
still being found.
They are very suitable for pot cultivation, but slow
information about Cotyledons and Tylecodons can be
found in the book by van Jaarsveld &