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Ophioglossum × Pseudoazoricum
''Ophioglossum'', the adder's-tongue ferns, is a genus of about 50 species of Fern, ferns in the family Ophioglossaceae. The name ''Ophioglossum'' comes from the Greek language, Greek meaning "snake-tongue".eFloras: ''Ophioglossum'' accessed 14 February 2014. Their cosmopolitan distribution is mainly in tropical and subtropical habitats. The genus has the largest number of chromosomes in the known plant kingdom, but contrary to popular belief does not have the largest number of chromosomes out of all known organisms, falling short to the protist ''Sterkiella histriomuscorum''. Description Adders-tongues are so-called because the spore-bearing stalk is thought to resemble a snake, snake's tongue. Each plant typically sends up a small, undivided leaf blade with net ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophioglossum Vulgatum
''Ophioglossum vulgatum'', commonly known as adder's-tongue, southern adders-tongue or adders-tongue fern, is a species of fern in the family ''Ophioglossaceae''. 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 Eurasia. This small, hard-to-spot plant can occur singly in unimproved pastures, rock crevices and grassy path-sides, but also can occur in colonies of hundreds of plants in sand dunes. 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 rounded diamond-shaped sheath and narrow spore-bearing spike. The spike has around 10-40 segments on each side. It reproduces by means of spores. Rarity This species is rare in most European countries. In Ukraine, there were recorded 280 loci: 152 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
