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Commelineae
Commelineae is a Tribe (biology), tribe of monocotyledonous flowering plants in the dayflower family (biology), family (Commelinaceae). The tribe consists of 13 genera and about 350 species. It is one of two tribes in the subfamily Commelinoideae, the other being the Tradescantieae, which is made up of 26 genera and about 300 species. The remaining two genera in the family are in a separate subfamily, the Cartonematoideae. The Commelineae can be separated Morphology (biology), morphologically from its sister tribe, the Tradescantieae, through a number of technical characters. These include having six subsidiary cells with the terminal pair always being smaller than the second lateral pair, pollen with a spiny exine and a perforate pollen, tectum, primarily zygomorphic flowers, non-moniliform filament hairs, no silica in the Epidermis (botany), epidermis, and small chromosomes. Molecular phylogenetics generally supports the separation of the two tribes. References Comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commelinoideae
Commelinoideae is a subfamily of monocotyledonous plants in the dayflower family ( Commelinaceae). It is one of two subfamilies within the Commelinaceae and includes 39 genera (out of 41 in the family) and all but 12 of the family's several hundred known species. The subfamily is further broken down into two tribes, the Tradescantieae, which includes 26 genera and about 300 species, and the Commelineae, which contains 13 genera and about 350 species. The Commelinoideae is separated morphologically from the other subfamily, Cartonematoideae, in having glandular microhairs, arteries containing needle-like calcium oxalate crystals called raphide canals in between the veins of the leaves, and flowers that are virtually never both yellow and actinomorphic. Molecular phylogenetics also supports the separation of the two subfamilies. Phylogeny The following is a phylogeny, or evolutionary tree, of most of the genera in Commelinoideae based on DNA sequences from the plastid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |