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Radiovittaria Ruiziana
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana'' (Fée) E.H.Crane *''Radiovittaria latifolia'' (Benedict) E.H.Crane *''Radiovittaria minima'' (Baker) E.H.Crane *''Radiovittaria moritziana'' (Mett.) E.H.Crane *''Radiovittaria remota ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized th ...'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...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] |
Vittarioideae
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 spe ... [...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] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern America (WGSRPD)
The World Geographical Scheme for Recording Plant Distributions (WGSRPD) is a biogeographical system developed by the international Biodiversity Information Standards (TDWG) organization, formerly the International Working Group on Taxonomic Databases. The WGSRPD standards, like other standards for data fields in botanical databases, were developed to promote "the wider and more effective dissemination of information about the world's heritage of biological organisms for the benefit of the world at large". The system provides clear definitions and codes for recording plant distributions at four scales or levels, from "botanical continents" down to parts of large countries. Current users of the system include the International Union for Conservation of Nature (IUCN), the Germplasm Resources Information Network (GRIN), and the World Checklist of Selected Plant Families (WCSP). Principles of organization The scheme is one of a number developed by Biodiversity Information Standard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Gardneriana
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the south .... Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Radiovittaria gardneriana'' (Fée) E.H.Crane *'' Radiovittaria latifolia'' (Benedict) E.H.Crane *'' Radiovittaria minima'' (Baker) E.H.Crane *'' Radiovittaria moritziana'' (Mett.) E.H.Crane *'' Radiovittaria remota'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Latifolia
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America South America is a continent entirely in the Western Hemisphere and mo ...'' (Fée) E.H.Crane *'' Radiovittaria latifolia'' (Benedict) E.H.Crane *'' Radiovittaria minima'' (Baker) E.H.Crane *'' Radiovittaria moritziana'' (Mett.) E.H.Crane *'' Radiovittaria remota'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Minima
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana'' (Fée) E.H.Crane *''Radiovittaria latifolia ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized th ...'' (Benedict) E.H.Crane *'' Radiovittaria minima'' (Baker) E.H.Crane *'' Radiovittaria moritziana'' (Mett.) E.H.Crane *'' Radiovittaria remota'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Moritziana
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana'' (Fée) E.H.Crane *''Radiovittaria latifolia'' (Benedict) E.H.Crane *''Radiovittaria minima ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized th ...'' (Baker) E.H.Crane *'' Radiovittaria moritziana'' (Mett.) E.H.Crane *'' Radiovittaria remota'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Remota
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana'' (Fée) E.H.Crane *''Radiovittaria latifolia'' (Benedict) E.H.Crane *''Radiovittaria minima'' (Baker) E.H.Crane *''Radiovittaria moritziana ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized th ...'' (Mett.) E.H.Crane *'' Radiovittaria remota'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiovittaria Ruiziana
''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *''Radiovittaria gardneriana'' (Fée) E.H.Crane *''Radiovittaria latifolia'' (Benedict) E.H.Crane *''Radiovittaria minima'' (Baker) E.H.Crane *''Radiovittaria moritziana'' (Mett.) E.H.Crane *''Radiovittaria remota ''Radiovittaria'' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae. Species are native to southeast Mexico and northern Southern America. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized th ...'' (Fée) E.H.Crane *'' Radiovittaria ruiziana'' (Fée) E.H.Crane *'' Radiovittaria stipitata'' (Kunze) E.H.Crane References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
