|
Actiniopteris Dichotoma
''Actiniopteris'' is a fern genus in the subfamily Pteridoideae of the family Pteridaceae. Species ''The Plant List'' and ''Tropicos'' recognise 5 accepted species: # ''Actiniopteris australis'' # '' Actiniopteris dichotoma'' # '' Actiniopteris dimorpha'' # ''Actiniopteris radiata ''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemb ...'' # '' Actiniopteris semiflabellata'' References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actiniopteris Radiata
''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemblance to ''Actiniopteris dimorpha'' Pic. Serm. This species is found in hot, dry habitats, growing at the base of rocks and in crevices, but also on deep soil in shady places. It is common in deciduous woodland with perennially high temperatures and low rainfall, ranging from 500m to 1300m. The distinctive fronds issue from a prostrate rhizome and are somewhat dimorphic. The laminae are 15-45mm long and fan-shaped with a spread of some 180 degrees, the tip of each segment bearing 2–5 teeth. Tests have shown that an aqueous and ethanolic extract of ''Actiniopteris radiata'' exhibits potent analgesic properties and antibacterial activity against ''Salmonella typhi'' "Staphylococcus aureus" and ''Escherichia coli''. The species also show ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Heinrich Friedrich Link
Johann Heinrich Friedrich Link (2 February 1767 – 1 January 1851) was a German naturalist and botanist. Biography Link was born at Hildesheim as a son of the minister August Heinrich Link (1738–1783), who taught him love of nature through collection of 'natural objects'. He studied medicine and natural sciences at the Hannoverschen Landesuniversität of Göttingen, and graduated as MD in 1789, promoting on his thesis ''"Flora der Felsgesteine rund um Göttingen"'' (Flora of the rocky beds around Göttingen). One of his teachers was the famous natural scientist Johann Friedrich Blumenbach (1752–1840). He became a private tutor (''Privatdozent'') in Göttingen. In 1792 he became the first professor of the new department of chemistry, zoology and botany at the University of Rostock. During his stay at Rostock, he became an early follower of the antiphlogistic theory of Lavoisier, teaching about the existence of oxygen instead of phlogiston. He was also a proponent of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate (Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns. Ferns first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteridoideae
''Pteridoideae'' is one of the five subfamilies of the fern family Pteridaceae. This subfamily contains about 14 genera and around 400 species. Taxonomy Phylogeny The following diagram shows a likely phylogenic relationship between Pteridoideae and the other the Pteridaceae subfamilies. The cladogram below shows one hypothesis for the evolutionary relationships among the genera of the Pteridoideae, based on a maximum likelihood analysis using six plastid markers. The authors of the study identified four major clades. The ''Pteris'' and JAPSTT clades are found worldwide; the GAPCC clade is pantropical; and the ''Actiniopteris''+''Onychium'' clade is restricted to the Old World. Genera The Pteridophyte Phylogeny Group classification of 2016 (PPG I) recognized 13 genera. Shortly afterwards, the genus ''Gastoniella'' was created for three species formerly placed in ''Anogramma'' which a molecular phylogenetic analysis had shown to be distinct. *'' Actiniopteris'' Link *'' Anogra ... [...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 Tradi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Plant List
The Plant List was a list of botanical names of species of plants created by the Royal Botanic Gardens, Kew and the Missouri Botanical Garden and launched in 2010. It was intended to be a comprehensive record of all known names of plant species over time, and was produced in response to Target 1 of the 2002-2010 Global Strategy for Plant Conservation (GSP C), to produce "An online flora of all known plants.” It has not been updated since 2013, and has been superseded by World Flora Online. World Flora Online In October 2012, the follow-up project World Flora Online was launched with the aim to publish an online flora of all known plants by 2020. This is a project of the United Nations Convention on Biological Diversity, with the aim of halting the loss of plant species worldwide by 2020. It is developed by a collaborative group of institutions around the world response to the 2011-2020 GSPC's updated Target 1. This aims to achieve an online Flora of all known plants by 2020. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropicos
Tropicos is an online botanical database containing taxonomic information on plants, mainly from the Neotropical realm (Central, and South America). It is maintained by the Missouri Botanical Garden and was established over 25 years ago. The database contains images and taxonomical and bibliographical data on more than 4.2 million herbarium A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (called ... specimens. In addition, it contains data on over 49,000 scientific publications. The database can be queried in English, French, and Spanish. The oldest records in the database go back to 1703. References External links * Online botany databases Online taxonomy databases Missouri Botanical Garden {{database-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actiniopteris Australis
''Actiniopteris'' is a fern genus in the subfamily Pteridoideae of the family Pteridaceae. Species ''The Plant List'' and ''Tropicos'' recognise 5 accepted species: # '' Actiniopteris australis'' # '' Actiniopteris dichotoma'' # '' Actiniopteris dimorpha'' # ''Actiniopteris radiata ''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemb ...'' # '' Actiniopteris semiflabellata'' References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actiniopteris Dichotoma
''Actiniopteris'' is a fern genus in the subfamily Pteridoideae of the family Pteridaceae. Species ''The Plant List'' and ''Tropicos'' recognise 5 accepted species: # ''Actiniopteris australis'' # '' Actiniopteris dichotoma'' # '' Actiniopteris dimorpha'' # ''Actiniopteris radiata ''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemb ...'' # '' Actiniopteris semiflabellata'' References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actiniopteris Dimorpha
''Actiniopteris'' is a fern genus in the subfamily Pteridoideae of the family Pteridaceae. Species ''The Plant List'' and ''Tropicos'' recognise 5 accepted species: # ''Actiniopteris australis'' # ''Actiniopteris dichotoma'' # '' Actiniopteris dimorpha'' # ''Actiniopteris radiata ''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemb ...'' # '' Actiniopteris semiflabellata'' References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actiniopteris Semiflabellata
''Actiniopteris'' is a fern genus in the subfamily Pteridoideae of the family Pteridaceae. Species ''The Plant List'' and ''Tropicos'' recognise 5 accepted species: # ''Actiniopteris australis'' # ''Actiniopteris dichotoma'' # ''Actiniopteris dimorpha'' # ''Actiniopteris radiata ''Actiniopteris radiata'' (''Actiniopteris'' = 'ray fern') is a widely distributed fern occurring throughout Africa and adjacent islands, Madagascar, Arabia, Iran, Afghanistan, Nepal, India, Sri Lanka, Burma and Australia. It bears a close resemb ...'' # '' Actiniopteris semiflabellata'' References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
