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Antrophyum
''Antrophyum'' is a genus of ferns in the family Pteridaceae.''Antrophyum'' USDA Germplasm Resources Information Network (GRIN) 14 Jan 2012 They are commonly known as lineleaf ferns. Description Like most other vittarioid ferns, members of the genus have simple, straplike leaves. Most species lack a costa (botany), costa (midrib), although a few have a partial one, and the leaves are generally more than wide. The leaves have netlike venation, with three or more rows of areolae ("gaps" in the net of veins) on either side of the midline. Linear sorus, sori are borne along the veins throughout the underside of the leaf. Paraphyses (miniature hairs) are present on the sori (separating the genus from ''Polytaenium''); the cells at the tips of the paraphyses may be spherical or slender, and spores are trilete. ( ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antrophyopsis
''Antrophyopsis'' is a genus of vittarioid ferns, a member of subfamily Vittarioideae and family Pteridaceae. Like other vittarioids, ferns in the genus are epiphytes with simple, straplike leaves. They are native to tropical Africa and islands of the Indian Ocean. The presence of a midrib in their leaves, the shape of their spores, and the shape of cells at the tip of their paraphyses (minute hairs on the spore-bearing structures) help to distinguish members of the genus from other vittarioids. The group was raised to the level of genus in 2016. Description Like most other vittarioid ferns, members of the genus have simple, straplike leaves. The rhizome has a distinct upper and lower side, lacking radial symmetry. Leaves are borne in two ranks in a single plane and lack a costa (midrib), unlike '' Scoliosorus''. The leaves have netlike venation, with three or more rows of areolae ("gaps" in the net of veins) on either side of the midline, with the exception of '' A. bivitt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scoliosorus
''Scoliosorus'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae with a single species, ''Scoliosorus ensiformis''. The species is native to Mexico and Central America Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to the southwest. Central America is usually .... References Pteridaceae Monotypic fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vittarioid
Vittarioideae is a subfamily of the fern family Pteridaceae, in the order Polypodiales. The subfamily includes the previous families Adiantaceae (adiantoids or maidenhair ferns) and Vittariaceae (vittarioids or shoestring ferns). Description The subfamily includes two distinct groups of ferns: the adiantoids, consisting of the single genus ''Adiantum'', and the vittarioids, several genera, including '' Vittaria'', which typically have highly reduced leaves, usually entire, and an epiphytic habit. The ferns historically considered as ''Adiantum'' include both petrophilic and terrestrial plants. The vittarioid ferns are primarily epiphytic in tropical regions and all have simple leaves with sori that follow the veins and lack true indusia; the sori are most often marginal with a false indusium formed from the reflexed leaf margin. The family also includes a species, ''Vittaria appalachiana'', that is highly unusual in that the sporophyte stage of the life cycle is absent. This sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteridaceae
Pteridaceae is a family of ferns in the order Polypodiales, including some 1150 known species in ca 45 genera (depending on taxonomic opinions), divided over five subfamilies. The family includes four groups of genera that are sometimes recognized as separate families: the adiantoid, cheilanthoid, pteridoid, and hemionitidoid ferns. Relationships among these groups remain unclear, and although some recent genetic analyses of the Pteridales suggest that neither the family Pteridaceae nor the major groups within it are all monophyletic, as yet these analyses are insufficiently comprehensive and robust to provide good support for a revision of the order at the family level. Description Members of Pteridaceae have creeping or erect rhizomes. The leaves are almost always compound and have linear sori that are typically on the margins of the leaves and lack a true indusium, typically being protected by a false indusium formed from the reflexed margin of the leaf. Taxonomy Tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antrophyum Mannianum
''Antrophyopsis manniana'' is a species of the genus '' Antrophyopsis'', a vittarioid fern occurring in the African rain forest and montane forest of East Africa and the Albertine Rift. History The type specimen was first collected by Gustav Mann in 1860 on the island of Bioko (Equatorial Guinea), formerly known as Fernando Po, at 3000 ft above sea level. William Jackson Hooker Sir William Jackson Hooker (6 July 178512 August 1865) was an English botany, botanist and botanical illustrator, who became the first director of Kew Gardens, Kew when in 1841 it was recommended to be placed under state ownership as a botan ... described the species in his book "A second century of ferns" in 1861, placing it in the genus '' Antrophyum''. It was reclassified into the genus '' Scoliosorus'' by E.H. Crane in 1997, but a molecular phylogeny by Eric Schuettpelz ''et al.'' in 2016 found that it belonged to a small group of species sister to the rest of ''Antrophyum'', which was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antrophyum Austroqueenslandicum
''Antrophyum austroqueenslandicum'' (previously ''A.'' sp. Blue Pool) was a species of epiphytic or lithophytic fern known from subtropical rainforest in Lamington National Park in the state of Queensland, Australia. Only one plant was known in the wild and when this plant died the specimen was preserved and used to describe the species. Further searching in nearby habitat has not located any more specimens of this fern. It is listed as Presumed Extinct under the Queensland Nature Conservation Act. However the habitat of this species is protected and has not suffered significant disturbance and other populations of this fern may still exist in unexplored areas of the McPherson Range The McPherson Range is an extensive mountain range, a spur of the Great Dividing Range, heading in an easterly direction from near Wallangarra, Queensland, Wallangarra to the Pacific Ocean coastline. It forms part of the Scenic Rim on the border .... The scientifically unexplored nature of these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytaenium
''Polytaenium'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ... and Southern America. Phylogeny , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''P. anetioides'' Benedict *''P. dussianum'' Benedict *''P. intramarginale'' (Baker ex Jenman) Alston *''P. jenmanii'' Benedict *''P. ophioglossoides'' (Lellinger) S.Linds. *''P. quadriseriatum'' Benedict *''P. urbani'' (Brause) Alain References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
