|
Ophioglossum
''Ophioglossum'', the adder's-tongue ferns, is a genus of about 50 species of ferns in the family Ophioglossaceae. The genus name comes from Ancient Greek ὄφις (''óphis''), meaning "snake", and γλῶσσα (''glôssa''), meaning "tongue".eFloras: ''Ophioglossum'' accessed 14 February 2014. Their is mainly in tropical and subtropical s. The genus has the largest number of |
Ophioglossum Rubellum
''Ophioglossum'', the adder's-tongue ferns, is a genus of about 50 species of ferns in the family Ophioglossaceae. The genus name comes from Ancient Greek ὄφις (''óphis''), meaning "snake", and γλῶσσα (''glôssa''), meaning "tongue".eFloras: ''Ophioglossum'' accessed 14 February 2014. Their is mainly in tropical and subtropical s. The genus has the largest number of |
Ophioglossum Reticulatum
''Ophioglossum reticulatum'', the netted adder's-tongue, is a species of fern in the family Ophioglossaceae. It has a pantropical/pansubtropical distribution; Latin America, the Caribbean, Sub-Saharan Africa, Madagascar, Yemen, the Indian Subcontinent, Southeast Asia, warmer parts of China, Malesia, Korea, Japan, and many tropical islands. It is a hexaploid Polyploidy is a condition in which the cells of an organism have more than two paired sets of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two complete sets of chromosomes, one fro ... and has the highest known number of chromosomes of any plant, 720. Its leaves—or leaf, individuals only grow one per year—are edible, and are regularly consumed by people in Africa and Asia. References reticulatum Ferns of the Americas Ferns of Africa Ferns of Asia Ferns of Oceania Flora of Mexico Flora of Central America Flora of the Caribbean Flora of Southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophioglossum Lusitanicum
''Ophioglossum lusitanicum'', the least adder's-tongue, is a small fern of the family Ophioglossaceae. It is a temperate species categorised as least concern by the IUCN (2001). Description ''Ophioglossum lusitanicum'' is a small winter annual fern, and consists of a simple sterile blade attached to a spike-like fertile blade with between three and eight sunken sporangia on either side. The whole plant rarely exceeds a height of 2 cm.Stace, Clive, (1997). ''New Flora of The British Isles'', second edition. Cambridge: Cambridge University Press This species has a chromosome number of 2''n'' = 250–260. Distribution ''Ophioglossum lusitanicum'' is native to regions bordering the eastern North Atlantic Ocean in Mauritania, Macaronesia (excluding Cape Verde), Morocco, Portugal, France up to the Isles of Scilly and Channel Islands; all countries bordering the Mediterranean; the Caucasus region and has some records in India and Vietnam. The distribution in Britain is restrict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophioglossaceae
Ophioglossaceae, from Ancient Greek ὄφις (''óphis''), meaning "snake", and γλῶσσα (''glôssa''), meaning "tongue", also known as the adder's-tongue family, is a small family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only family in the order Ophioglossales, which together with the Psilotales is placed in the subclass Ophioglossidae. The Ophioglossidae are one of the groups traditionally known as eusporangiate ferns. Members of the family differ from other ferns in a number of ways. Many have only a single fleshy leaf at a time. Their gametophytes are subterranean and rely on fungi for energy. Description Members of Ophioglossaceae are usually terrestrial (excepting a few epiphytic species of '' Ophioglossum'') and occur in both temperate and tropical areas. They differ from the other ferns in several respects: * Many species only send up one frond or leaf-blade per year, producing only a single leaf at a time. The leaves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophioglossum Vulgatum
''Ophioglossum vulgatum'', commonly known as adder's-tongue, southern adder's-tongue or adder's-tongue fern, is a species of fern in the family ''Ophioglossaceae''. The chloroplast genome was reported to have a size of 138,562 base pairs. Description ''Ophioglossum vulgatum'' grows from a rhizome base to 10–20 cm tall (rarely to 30 cm). It consists of a two-part frond, separated into a 4-12 cm rounded diamond-shaped leaf sheath and narrow branchless spore-bearing spike. The spike has around 10-40 segments on each side. It reproduces by means of spores. Taxonomy Carl Linnaeus, Linnaeus species description, described adder's-tongue with the binomial nomenclature, binomial ''Ophioglossum vulgatum'' in his ''Species Plantarum'' of 1753. Distribution It is native to many regions with a wide scattered distribution: throughout temperate through tropical Africa and throughout the temperate Northern Hemisphere in Europe, northeastern North America, temperate Asia, and Euras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
