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Asplenium
''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is ''Asplenium marinum''. The most common vernacular name is spleenworts, applied to the more "typical" species. '' A. nidus'' and several similar species are called bird's-nest ferns, the ''Camptosorus'' group is known as walking ferns, and distinct names are applied to some other particularly well-known species. Taxonomy and genetics Many groups of species have been separated from ''Asplenium'' as segregate genera. These include ''Camptosorus'', ''Ceterach'', ''Phyllitis'', and ''Tarachia'', but these species can form hybrids with other ''Asplenium'' species and because of this are usually included in a more broadly defined ''Asplenium''. So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Viviparum
''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is ''Asplenium marinum''. The most common vernacular name is spleenworts, applied to the more "typical" species. '' A. nidus'' and several similar species are called bird's-nest ferns, the ''Camptosorus'' group is known as walking ferns, and distinct names are applied to some other particularly well-known species. Taxonomy and genetics Many groups of species have been separated from ''Asplenium'' as segregate genera. These include ''Camptosorus'', ''Ceterach'', ''Phyllitis'', and ''Tarachia'', but these species can form hybrids with other ''Asplenium'' species and because of this are usually included in a more broadly defined ''Asplenium''. Som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Trichomanes
''Asplenium trichomanes'', the maidenhair spleenwort, is a small fern in the spleenwort genus ''Asplenium''. It is a widespread and common species, occurring almost worldwide in a variety of rocky habitats. It is a variable fern with several subspecies. The binomial nomenclature, specific epithet ''trichomanes'' refers to a Greek word for fern. Description ''Asplenium trichomanes'' grows 10 to 30 cm tall forming tufts arising from a short, scaly rhizome. The scales are dark. The evergreen fronds are long and narrow, gradually tapering towards the tip. They are simply divided into small, yellow-green to dark-green, roundish Frond, pinnae. The stipe (botany), stipe and rachis of the frond are dark all along their length. The fronds can reach 40 cm in length but are more commonly 8–20 cm. The Sorus, indusia are linear to oval, straight, and attached to the upper-side of the fertile vein. There are (2) 4 to 8 sori per pinna and each are 1 to 3.5 mm long. Diplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Nidus
:''See bird's-nest fern for other plants with this common name.'' ''Asplenium nidus'' is an epiphytic species of fern in the family Aspleniaceae, native to tropical southeastern Asia, eastern Australia, Hawaii (''ʻēkaha'' in Hawaiian), Polynesia,MacDonald, Elvin "The World Book of House Plants" pp.264 Popular Books Christmas Island, India, and eastern Africa. It is known by the common names bird's-nest fern (a name shared by some other aspleniums) or simply nest fern. Description ''Asplenium nidus'' forms large simple fronds visually similar to banana leaves, with the fronds growing to long and broad, with occasional individuals up to 6.6 feet (two meters) in length by up to two feet (61 centimeters) width They are light green, often crinkled, with a black midrib, and exhibit circinate vernation. Spores develop in sori on the underside of the fronds. These sori form long rows extending out from the midrib on the back of the outer part of the lamina (frond). The fronds roll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mother Spleenwort
''Asplenium bulbiferum'', known as mother spleenwort, is a fern species native to New Zealand only. It is also called hen and chicken fern and, in the Māori language, pikopiko, mouku or mauku. Its fronds are eaten as a vegetable. It grows small bulbils on top of its fronds. Once grown to about , these offspring fall off and, provided the soil they land in is kept moist, develop a root system and grow into new ferns. This additional means of reproduction can be employed with greater ease than propagation by spores. There are a number of similar Southern Hemisphere species which have a similar mode of reproduction, including '' Asplenium daucifolium''. ''Asplenium bulbiferum'' commonly grows in most bush areas in New Zealand. It thrives in many situations from shade to partial sunlight. Similar species It is often confused with ''Asplenium gracillimum'' which is a fern species native to both New Zealand and Australia. ''A. gracillimum'' is the fertile allotetraploid Pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspleniaceae
The Aspleniaceae (spleenworts) are a family of ferns, included in the order Polypodiales. The composition and classification of the family have been subject to considerable changes. In particular, there is a narrow circumscription, Aspleniaceae s.s. (adopted here), in which the family contains only two genera, and a very broad one, Aspleniaceae s.l., in which the family includes 10 other families kept separate in the narrow circumscription, with the Aspleniaceae s.s. being reduced to the subfamily Asplenioideae. The family has a worldwide distribution, with many species in both temperate and tropical areas. Elongated unpaired sori are an important characteristic of most members of the family. Description Members of the family grow from rhizomes, that are either creeping or somewhat erect, and are usually but not always unbranched, and have scales that usually have a lattice-like (clathrate) structure. In some species, for example ''Asplenium nidus'', the rhizomes form a kind o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Marinum
''Asplenium marinum'' is a fern known as the sea spleenwort because of its preference for maritime habitats. Located around the coasts of Europe from Italy in the South to Norway in the North, its most Southern distribution extends to the Northern islands of Tunisia ( Galitte islands). Linnaeus was the first to describe sea spleenwort with the binomial Binomial may refer to: In mathematics *Binomial (polynomial), a polynomial with two terms * Binomial coefficient, numbers appearing in the expansions of powers of binomials *Binomial QMF, a perfect-reconstruction orthogonal wavelet decomposition ... ''Asplenium marinum'' in his '' Species Plantarum'' of 1753. References External links * * {{Taxonbar, from=Q1822788 marinum Plants described in 1753 Ferns of Europe Taxa named by Carl Linnaeus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird's-nest Fern
Bird's-nest fern is a common name applied to several related species of epiphytic ferns in the genus ''Asplenium ''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider '' Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA sequences, a different ...''. They grow in a tight, nest-like clump with a lingulate leaf rosette. Species known as bird's nest fern include: *'' A. nidus'' (bird's-nest fern) *'' A. australasicum'' (crow's-nest fern) *'' A. antiquum'' *'' A. serratum'' (wild bird's-nest fern) Asplenium Epiphytes House plants {{Plant common name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walking Fern
Walking fern may refer to two species of fern in the genus ''Asplenium'' which are occasionally placed in a separate genus ''Camptosorus''. The name "walking fern" derives from the fact that new plantlets grow wherever the arching leaves of the parent touch the ground, creating a walking effect. Both have evergreen, undivided, slightly leathery leaves which are triangular and taper to a thin point. On the bottom of the leaves, sori, or spore-bearing structures, cluster along the veins. These hardy plants can be found in shady spots of limestone ledges and limy forest places. *''Asplenium rhizophyllum'' (syn: ''Camptosorus rhizophyllum''), native to North America *'' Asplenium ruprechtii'' (syn: ''Camptosorus sibiricus''), native to East Asia It may also refer to: *'' Adiantum caudatum'', a species of maidenhair fern ''Adiantum'' (), the maidenhair fern, is a genus of about 250 species of ferns in the subfamily Vittarioideae of the family Pteridaceae, though some researcher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenasplenium
''Hymenasplenium'' is one of three genera of ferns in the Aspleniaceae (spleenwort family), in the eupolypods II clade of the order Polypodiales. The others are ''Hemidictyum'' and ''Asplenium''. ''Hymenasplenium'' was segregated because it is a natural grouping with differing rhizome morphology – dorsiventral v. radial for the rest of Asplenium, differing chromosome count – x=39 v. x=36 for the rest of Asplenium, and a clear monophyletic grouping based on genetic analysis. It was confirmed as a sister group to ''Asplenium'' in a 2015 molecular study of the genera. Selected species *''Hymenasplenium basiscopicum'' *'' Hymenasplenium cardiophyllum'' *''Hymenasplenium cheilosorum'' *''Hymenasplenium delitescens'' *''Hymenasplenium hoffmannii'' *''Hymenasplenium ikenoi'' *''Hymenasplenium laetum'' *''Hymenasplenium obtusifolium'' *''Hymenasplenium ortegae'' *''Hymenasplenium purpurascens'' *''Hymenasplenium repandulum'' *''Hymenasplenium riparium'' *''Hymenasplenium triquetrum'' ... [...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] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistic
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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