|
Polytrichaceae
Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses, with the larger species occurring in particularly moist habitats. The leaves have specialized sheaths at the base and a midrib that bears photosynthetic lamellae on the upper surface. These mosses are capable of sustaining high rates of photosynthesis in the presence of ample light and moisture. Unlike all other mosses, the hydroid-based vascular system of these mosses is continuous from stem to leaf and can extract water from the soil through transpiration. Species in this group are dioicous, though some are monoicous. In most species, the sporophytes are relatively large, the setae are rigid, and the calyptrae are hairy. Most species have nematodontous peristomes with 32–64 teeth in their sporangium; some early-diverging genera instead have a stopper mechanism, which consists of the apical section of the columella, that seals the mouth of the capsule shut prior to dehi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itatiella
''Itatiella ulei'' is a species of moss in the family Polytrichaceae. It is the only species in the genus ''Itatiella''. The Polytrichaceae is a common family of mosses that does not have close living relatives. Its small size and the inflexed leaf apex characterize ''Itatiella ulei''. When this species grows directly exposed to sun at high elevations, it presents a similar aspect but can be distinguished based on the distal lamella cells which are single and rhombic. Description ''Itatiella ulei'' is dark green to brown 10-25mm long plant. Just like other moss, this plant divides into two parts, which are sporophyte and gametophyte. The stems are brown, straight and forming tufts. The rhizome is pale-brown and facing down on the ground. Leaves are 2.5-4.0mm long and oblong-lanceolate in shape. This plant has hexagonal-quadratic cells that are thick walled. This plant is dioicous which means gametophytes produce sperm or eggs but never both. The perichaetium that surrounds the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dawsonia (plant)
''Dawsonia'' is a genus of acrocarpous mosses. ''Dawsonia'', along with other members of the order Polytrichales, are taller than most mosses and have thicker leaves. Their sporophytes have conducting systems analogous to those of vascular plants. '' Dawsonia superba'' is found in New Zealand, Australia and New Guinea. '' D. longifolia'' is found in the Philippines, Indonesia, Malaysia, and Australia. There is uncertainty as to whether ''D. superba'' and ''D. longifolia'' are actually distinct species. Etymology ''Dawsonia'' was named in honor of Dawson Turner (1775–1858), distinguished cryptogamist and friend of Robert Brown, who named the genus in 1811. Description Height Moss gametophytes lack internal transport tissues, which, coupled with the absence of cuticles, leads to the water-loss characteristic of bryophytes. As bryophytes can only grow when hydrated, the lack of conducting tissue restricts most mosses, even in relatively wet habitats, to a low stature. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytrichadelphus
''Polytrichadelphus'' is a genus of mosses belonging to the family Polytrichaceae Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses, with the larger species occurring in particularly moist habitats. The leaves have specialized sheaths at the base and a midrib that bears pho .... The species of this genus are found in Australia and America. Species: * '' Polytrichadelphus abriaquiae'' Jaeger, 1880 * '' Polytrichadelphus archboldii'' E.B.Bartram, 1942 * '' Polytrichadelphus magellanicus'' (Hedw.) Mitt. References Polytrichaceae Moss genera {{moss-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Friedrich Schwägrichen
Christian Friedrich Schwägrichen (16 September 1775, Leipzig – 2 May 1853, Leipzig) was a German botanist specializing in the field of bryology. In 1799, he obtained his medical doctorate from the University of Leipzig, where he was later an associate professor of natural history (1803–1815) and afterwards a full professor on the same subject (1815–1852). Concurrently, he served as an associate professor of botany (1807–1852) at Leipzig.Professorenkatalog der Universität Leipzig , catalogus professorum lipsiensium (biography) Prior to 1837, he was director of the at Leipzig, being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atrichum
''Atrichum'' is a genus of mosses belonging to the family Polytrichaceae. The genus was first described by Palisot de Beauvois. The genus has cosmopolitan distribution In biogeography, a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats; most cosmopolitan species are known to be highly adaptable to a range of climatic and en .... Species: * '' Atrichum angustatum'' * '' Atrichum crispum'' * '' Atrichum flavisetum'' * '' Atrichum tenellum'' * '' Atrichum undulatum'' References Polytrichaceae Moss genera {{moss-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroligotrichum
''Dendroligotrichum'' is a genus of mosses belonging to the family Polytrichaceae Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses, with the larger species occurring in particularly moist habitats. The leaves have specialized sheaths at the base and a midrib that bears pho .... Species: * '' Dendroligotrichum dendroides'' (Brid. ex Hedw.) Broth. * '' Dendroligotrichum squamosum'' (Hook.f. & Wilson) Broth. ex Cardot * '' Dendroligotrichum tongariroense'' (Colenso) Tangney References Polytrichaceae Moss genera {{moss-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alophosia
''Alophosia'' is a genus of mosses belonging to the family Polytrichaceae. The only species is ''Alophosia azorica''. The genus was first described by Jules Cardot Jules Cardot (18 August 1860 – 22 November 1934) was a French botanist and bryologist considered in his time one of the world's leading experts on the mosses of Antarctica. He was the son-in-law of botanist Louis Piré. His collection of he .... References Polytrichaceae Monotypic moss genera {{moss-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pogonatum
''Pogonatum'' is a genus of mosses — commonly called spike moss — which contains approximately 70 species that cover a cosmopolitan distribution In biogeography, a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats; most cosmopolitan species are known to be highly adaptable to a range of climatic and en .... It can be seen mostly in Asian countries with a tropical climate. Species There are about 156 species known in all, 9 in North America. References * * {{Taxonbar, from=Q1773133 Polytrichaceae Moss genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atrichopsis
''Atrichopsis'' is a genus of mosses belonging to the family Polytrichaceae. The genus was first described by Jules Cardot Jules Cardot (18 August 1860 – 22 November 1934) was a French botanist and bryologist considered in his time one of the world's leading experts on the mosses of Antarctica. He was the son-in-law of botanist Louis Piré. His collection of he .... Species: * '' Atrichopsis angulata'' * '' Atrichopsis australis'' * '' Atrichopsis bellii'' * '' Atrichopsis capensis'' * '' Atrichopsis compressa'' * '' Atrichopsis crispula'' * '' Atrichopsis erosa'' * '' Atrichopsis laxifolia'' * '' Atrichopsis mexicana'' * '' Atrichopsis minima'' * '' Atrichopsis tapes'' * '' Atrichopsis tenuirostris'' * '' Atrichopsis tetragona'' * '' Atrichopsis trichodon'' * '' Atrichopsis tristaniensis'' References Polytrichaceae Moss genera {{moss-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroid (botany)
A hydroid is a type of vascular cell that occurs in certain bryophytes. In some mosses such as members of the Polytrichaceae family, hydroids form the innermost layer of cells in the stem. At maturity they are long, colourless, thin walled cells of small diameter, containing water but no living protoplasm. Collectively, hydroids function as a conducting tissue, known as the hydrome, transporting water and minerals drawn from the soil. They are surrounded by bundles of living cells known as leptoids which carry sugars and other nutrients in solution. The hydroids are analogous to the tracheids of vascular plants but there is no lignin present in the cell walls to provide structural support. Hydroids have been found in some fossilised plants from the Rhynie chert, including ''Aglaophyton'', where they were initially mistaken for xylem tracheids. See also * Leptoid, a related sucrose-transporting vessel analogous to the phloem Phloem (, ) is the living tissue in vascular plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
