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Diphasiastrum × Sabinifolium
''Diphasiastrum'' × ''sabinifolium'', the savinleaf groundpine or savin leaf club moss, is hybrid of '' D. sitchense'' and '' D. tristachyum''. It can be found in North America from Labrador and Newfoundland to Ontario, and south to Pennsylvania and Michigan. Erect stems can reach 20 centimeters high, and branch dichotomously. The sterile branches are flattened, and the leaves are 4-ranked. Peduncles are 1-8 centimeters long. In many disturbed sites, it can be found growing alongside D. sitchense, and can be distinguished by flattened branchlets split into four ranks, as opposed to those of D. sitchense, which generally are rounded and split into five ranks. References {{DEFAULTSORT:Diphasiastrum sabinifolium sabinifolium Hybrid plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josef Ludwig Holub
The Professor Josef Ludwig Holub (5 February 1930 in Mladá Boleslav, (now Czech Republic) – 23 July 1999) was a Czech botanist who described a number of new species, worked on systematic reorganization of botanical groups, and contributed greatly to the study of European flora. Biography Josef Holub studied at Charles University in Prague, becoming a lecturer in botany in 1953. He co-founded the Czech Institute of Botany where he worked for many years. He also helped create the Department of Biosystematics, and the journal ''Folia'', published by the "Geobotanical and Phytotaxonomic Institute. In 1991 he was named president of the Czech Botanical Society. He participated in many botanical field studies in central Europe. Work He worked on vascular plant taxonomy. He contributed to economic botany, especially with his work on the flora of Slovakia and the Czech Republic. *Holub, J et al. 1967. "Sobrevista de las unidades de vegetación superior de Checoslovaquia", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diphasiastrum Sitchense
''Diphasiastrum sitchense'', the Sitka clubmoss, is a pteridophyte species native to northern North America and northeastern Asia. It is a terrestrial herb spreading by stolons running on the surface or the ground or just slightly below the surface. Leaves are appressed, broadly lanceolate, up to 3.2 mm (0.13 inches) long. Strobili are solitary on the ends of shoots. It is known from every province in Canada, plus the US States of Alaska, Oregon, Washington, Idaho, Montana, Maine, New Hampshire, Vermont, and New York. It is also found in Greenland, St. Pierre and Miquelon, Yukon, Japan, and the Kamchatka Peninsula The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and we ... of Asiatic Russia. It can be found in alpine meadows, open rocky barrens, and coniferous woodlands.Holub, J. 1975. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diphasiastrum Tristachyum
''Diphasiastrum tristachyum'', commonly known as blue clubmoss, blue ground-cedar, ground pine, deep-rooted running-pine or ground cedar, is a North American and Eurasian species of clubmoss. In North America, it has been found from Newfoundland west to Manitoba, and south as far as Georgia and Alabama. In Eurasia, it ranges from southern Norway and Sweden south to France and Italy and it also occurs in the Caucasus. The name tristachyum means three branched. Description ''Diphasiastrum tristachyum'' is a perennial species of clubmoss. It grows from creeping underground stems which are often deeply buried at 5–12 cm deep; at nodes from this stem the above ground stems emerge. The upright stems can be tall or higher. From the main stem, several fan shaped "leaves" emerge, these are not true leaves but rather branched stems which appear to almost look like leaves, each branches 4-6 times. The stems all grow to a similar height at the top of the plant, giving it a flat topp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diphasiastrum
''Diphasiastrum'' is a genus of clubmosses in the plant family Lycopodiaceae. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is placed in the subfamily Lycopodioideae. It is closely related to the genus ''Lycopodium'', and some botanists treat it within a broad view of that genus as a section, ''Lycopodium'' sect. ''Complanata''. Some species superficially resemble diminutive gymnosperms and have been given common names such as ground-pine or ground-cedar. There are 16 species, and numerous natural hybrids in the genus; many of the hybrids are fertile, allowing their occurrence to become frequent, sometimes more so than the parent species. The basal chromosome count for this genus is ''n=23'', which is distinctively different from other lycopods. Several species have been used economically for their spores, which are harvested as Lycopodium powder. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
