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Asplenium
''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family (biology), 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. ''Asplenium nidus, 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. Etymology From Neo-Latin, New Latin ''asplenium'' (“spleenworts”), Carolus Linnaeus, Linnaeus's adjustment of Latin ''asplenon'' (“spleenwort”), from Ancient Greek ἄσπληνον (''ásplēnon'', “spleenwort”), from ἀ- (''a-'', “un-”) + σπλήν (''splḗn'', “spleen”) + -ο ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Trichomanes
''Asplenium trichomanes'', the maidenhair spleenwort (not to be confused with the similar-looking Adiantum, maidenhair fern), 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'' is a small plant forming tufts between tall, arising from a short, scaly rhizome. The scales are dark and the evergreen fronds are long and narrow, gradually tapering towards the tip. They are simply divided into small, yellow-green to dark-green, roundish leaflets or pinnae. The stipe (botany), stipe and rachis of the frond are dark all along their length. The fronds can reach in length but are more commonly between . The Sorus, indusia are linear to oval, straight, and attached to the upper-side of the fertile vein. There are u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Nidus
''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 A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large treelike herbaceous flowering plants in the genus '' Musa''. In some countries, cooking bananas are called plantains, distinguishing the ... 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 ve ... [...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 ... [...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 ''Asplenium marinum'' in his ''Species Plantarum ' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genus, genera. It is the first work to consistently apply binomial nomenclature ...'' 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 (biology), family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA seque ...''. 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. cymbifolium'' *'' A. serratum'' (wild bird's-nest fern) Asplenium Epiphytes House plants {{Plant common name ... [...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 ''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family (biology), family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA seque ...'' in a 2015 molecular study of the genera. Phylogeny References Aspleniaceae Fern genera {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walking Fern
Walking fern or creeping fern may refer to species of ferns that produce vegetative buds at the tips of their fronds which produce roots and plantlets that make the plant spread. 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. Several species of fern have the adaptations to produce vegetative buds in addition to reproduction through spores. These buds are typically at the tip (acrophyllomic) but can also be on the lamina. Most ferns can also propagate along the ground through creeping rhizomes. Some species of fern associated with the name are: *''Asplenium rhizophyllum'' (syn: ''Camptosorus rhizophyllum''), native to North America *'' Asplenium ruprechtii'' (syn: ''Camptosorus sibiricus''), native to East Asia *'' Bolbitis semicordata'' *''Woodwardia radicans'' *'' Asplenium zankaranum'' *'' Adiantum caudatum'', a species of maidenhair fern ''Adiantum'' (), the maiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses 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 leaf, leaves called megaphylls that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled Fiddlehead fern, 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 (plant), Polypodiidae) and eusporangiate ferns, the latter group including horsetails, Psilotaceae, whisk ferns, marattioid ferns, and ophioglossoid ferns. The fern crown group, consisting of the leptosporangiates and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloroplast
A chloroplast () is a type of membrane-bound organelle, organelle known as a plastid that conducts photosynthesis mostly in plant cell, plant and algae, algal cells. Chloroplasts have a high concentration of chlorophyll pigments which capture the Radiant energy, energy from sunlight and convert it to chemical energy and release oxygen. The chemical energy created is then used to make sugar and other organic molecules from carbon dioxide in a process called the Calvin cycle. Chloroplasts carry out a number of other functions, including fatty acid synthesis, amino acid synthesis, and the immune response in plants. The number of chloroplasts per cell varies from one, in some unicellular algae, up to 100 in plants like ''Arabidopsis'' and wheat. Chloroplasts are highly dynamic—they circulate and are moved around within cells. Their behavior is strongly influenced by environmental factors like light color and intensity. Chloroplasts cannot be made anew by the plant cell and must ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastome
Chloroplast DNA (cpDNA), also known as plastid DNA (ptDNA) is the DNA located in chloroplasts, which are photosynthetic organelles located within the cells of some eukaryotic organisms. Chloroplasts, like other types of plastid, contain a genome separate from that in the cell nucleus. The existence of chloroplast DNA was identified biochemically in 1959, and confirmed by electron microscopy in 1962. The discoveries that the chloroplast contains ribosomes and performs protein synthesis revealed that the chloroplast is genetically semi-autonomous. The first complete chloroplast genome sequences were published in 1986, '' Nicotiana tabacum'' (tobacco) by Sugiura and colleagues and '' Marchantia polymorpha'' (liverwort) by Ozeki et al. Since then, tens of thousands of chloroplast genomes from various species have been sequenced. Molecular structure Chloroplast DNAs are circular, and are typically 120,000–170,000 base pairs long. They can have a contour length of around 30– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segregate (taxonomy)
In taxonomy, a segregate, or a segregate taxon is created when a taxon is split off from another taxon. This other taxon will be better known, usually bigger, and will continue to exist, even after the segregate taxon has been split off. A segregate will be either new or ephemeral: there is a tendency for taxonomists to disagree on segregates, and later workers often reunite a segregate with the 'mother' taxon. If a segregate is generally accepted as a 'good' taxon it ceases to be a segregate. Thus, this is a way of indicating change in the taxonomic status. It should not be confused with, for example, the subdivision of a genus into subgenera. :For example, the genus '' Alsobia'' is a ''segregate'' from the genus '' Episcia''; The genera ''Filipendula'' and ''Aruncus'' are segregates from the genus '' Spiraea''. References {{Reflist External links A more detailed explanation with multiple examples on mushroom A mushroom or toadstool is the fleshy, spore-bearing Sporoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or Extant taxon, extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed ''monophyletic'' (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming Taxon, taxa that are not clades; that is, taxa that are not Monophyly, monophyletic. Some of the relationships between organisms that the molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
