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Corsiaceae
Corsiaceae is a family of monocotyledonous flowering plants. The APG II system (2003) treats the family in the order Liliales, in the clade monocots. This is a slight change from the APG system, of 1998, which left the family unplaced as to order, but did assign it also to the monocots. Taxonomy The family is usually taken to include three genera, ''Corsia'', ''Corsiopsis'', and ''Arachnitis'' with a total of 27 known species. As the members of this family are achlorophyllous non-autotrophic herbs (i.e. they are not green, and do not photosynthesize) they have sometimes been included in the family Burmanniaceae which, however, according to APG II is not even in the same order. ThAPG companion sitecites a reference which suggests the family should consist of ''Corsia'' only, with ''Arachnitis'' better placed nearer to family Burmanniaceae. ''Corsiopsis'', like ''Arachnitis'' a monotypic genus, has been described recently. Genera and species *''Arachnitis'' Phil., 1864 **' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corsia Papuana
''Corsia'' is a little-studied plant genus from the monocotyledon family Corsiaceae. It was first described in 1877 by Italian naturalist Odoardo Beccari and contains 25 species, all of which lack chlorophyll and parasitize fungi for nutrition. All 25 species are distributed through New Guinea, the Bismarck Archipelago, the Solomon Islands and Queensland, Australia. Description In terms of appearance, the species of ''Corsia'' are quite uniform except for the flowers.Paul Kores, David A. White, Leonard B. Thien: ''Chromosomes of Corsia (Corsiaceae)'', American Journal of Botany, Vol. 65, No. 5 (May - Jun., 1978), Page. 584-585, Chromosome counts are known only from two species: ''Corsia cornuta'' and ''C. clypeata''. Both have a diploid number (''2n'') of 18. Habit ''Corsia'' exist largely underground; only the seldom-formed flower stems develop above ground. The fine, thread-like and hairless root system is weakly branched and whitish, spreading widely just beneath the surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
