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Polytrichaceae
Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses with a thickened central stem and a rhizome. The leaves have a midrib that bears photosynthetic lamellae on the upper surface. Species in this group are dioicous. Another characteristic that identifies them is that they have from 32 to 64 peristome teeth in their sporangium. Classification Genera Extinct genera * '' Eopolytrichum'' Konopka, Herendeen, Merrill & Crane (1997), Gaillard Formation, Georgia, USA, Upper Cretaceous (Campanian) * '' Meantoinea'' Bippus, Stockey, Rothwell & Tomescu (2017) Apple Bay locality, Vancouver Island, Canada, Lower Cretaceous (Valanginian In the geologic timescale, the Valanginian is an age or stage of the Early or Lower Cretaceous. It spans between 139.8 ± 3.0 Ma and 132.9 ± 2.0 Ma (million years ago). The Valanginian Stage succeeds the Berriasian Stage of the Lower Cretace ...) References Moss families [...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] |
Polytrichum
''Polytrichum'' is a genus of mosses — commonly called haircap moss or hair moss — which contains approximately 70 species that cover a cosmopolitan distribution. The genus ''Polytrichum'' has a number of closely related sporophytic characters. The scientific name is derived from the Ancient Greek words ''polys'', meaning "many", and ''thrix'', meaning "hair". This name was used in ancient times to refer to plants with fine, hairlike parts, including mosses, but this application specifically refers to the hairy calyptras found on young sporophytes. A similar naming related to hair appears in Old Norse, ''haddr silfjar'', "hair of Sif", goddess from Norse Mythology, wife of the god Thor. There are two major sections of ''Polytrichum'' species. The first — section ''Polytrichum'' — has narrow, toothed, and relatively erect leaf margins. The other — section ''Juniperifolia'' — has broad, entire, and sharply inflexed leaf margins that enclose the lamellae on the upper lea ... [...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, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extr .... Species: * '' Atrichum angustatum'' * '' Atrichum crispum'' * '' Atrichum flavisetum'' * '' Atrichum tenellum'' * '' Atrichum undulatum'' References {{Taxonbar, from=Q150313 Polytrichaceae Moss genera ... [...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. 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] |
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 a thickened central stem and a rhizome. The leaves have a midrib that bears photosynthetic lamellae on the upper surface. Species in .... The species of this genus are found in Australia and America. Species: * '' Polytrichadelphus abriaquiae'' Jaeger, 1880 * '' Polytrichadelphus archboldii'' E.B.Bartram, 1942 References {{Taxonbar, from=Q17285738 Polytrichaceae Moss genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta ('' sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. There ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
