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Tylecodon
''Tylecodon'' is a genus of succulent plants in the family Crassulaceae, native to southern Africa. Until the late 1970s all these plants were included in the genus ''Cotyledon'', but in 1978 Helmut Toelken of the Botanical Research Institute, Pretoria, split them off into a genus of their own. Description and taxonomy The grounds for splitting ''Cotyledon'' to create the new genus included certain features of the flowers, but more conspicuously, the leaves of ''Tylecodon'' are deciduous in summer and they are borne in a spiral arrangement, rather than the opposite, decussate arrangement of ''Cotyledon'' leaves. The species are very varied, ranging from dwarf succulents such as '' Tylecodon reticulatus'' to '' Tylecodon paniculatus'', which may exceed two metres in height. The new name ''Tylecodon'' was apparently chosen as a syllabic anagram of the earlier name ''Cotyledon''. Pharmacology and toxicology ''Tylecodon'' species are poisonous. Some of them are sufficientl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tylecodon Grandiflorus
''Tylecodon'' is a genus of succulent plants in the family Crassulaceae, native to southern Africa. Until the late 1970s all these plants were included in the genus ''Cotyledon (genus), Cotyledon'', but in 1978 Helmut Toelken of the Botanical Research Institute, Pretoria, split them off into a genus of their own. Description and taxonomy The grounds for splitting ''Cotyledon'' to create the new genus included certain features of the flowers, but more conspicuously, the leaves of ''Tylecodon'' are deciduous in summer and they are borne in a spiral arrangement, rather than the Phyllotaxis, opposite, Decussation, decussate arrangement of ''Cotyledon'' leaves. The species are very varied, ranging from dwarf succulents such as ''Tylecodon reticulatus'' to ''Tylecodon paniculatus'', which may exceed two metres in height. The new name ''Tylecodon'' was apparently chosen as a syllabic anagram of the earlier name ''Cotyledon (genus), Cotyledon''. Pharmacology and toxicology ''Ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
