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Doassansiaceae
The Doassansiaceae are a family of fungi in the division Basidiomycota and order of Doassansiales. The family contains 11 genera and about 58 species. They have a widespread distribution.P. F. Cannon and P. M. Kirk (editors) ''Doassansiaceae'' is also known and classified as a ''smut fungi''.K. G. Mukerji and C. Manoharachary (editors) They have parasitic hyphae with clamps, they are also teliosporic (have a thick-walled resting spore) and dimorphic (can be mold or yeasts) as well as not forming ballistocondia (air discharged spores) in the haploid phase. The do not have haustoria (root-like structures). When the family was originally created (by R. Bauer and Oberw. 1997), it had 7 genera (''Burrillia'', ''Doassansia'', ''Heterodoassansia'', ''Nannfeldtiomyces'', ''Narasimhania'', ''Pseudodoassansia'' and ''Tracya'') and 36 species. Then ''Doassinga'' was added in 1998. Others were added after this date, such as ''Pseudodermatosorus'' in 1999. Description They have sori th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doassansiales
The Doassansiales are an order of fungi in the class Exobasidiomycetes. The order consist of three families: the Doassansiaceae, the Melaniellaceae, and the Rhamphosporaceae (which is a monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ... family with a monotypic genus, with one species; '' Rhamphospora nymphaeae'' ). References {{Taxonbar, from=Q144933 Ustilaginomycotina Basidiomycota orders Taxa named by Franz Oberwinkler ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doassansia
''Doassansia'' is a genus of fungi belonging to the family Doassansiaceae. The species of this genus are found in Europe and Northern America. Ecology They are parasitic on plants, attaching to leaves and stems of monocotyledons. ''Doassansia sagittariae'' and ''Doassansiopsis deformans'' can be found on plants of ''Sagittaria lancifolia'', ''Doassansia alismatis'' can be found on various species of ''Alisma'' and both ''Doassansiopsis occulta'' and ''Doassansiopsis hydrophila'' can be found on various species of ''Potamogeton'' plants.Donald H. Les Species As accepted by GBIF The Global Biodiversity Information Facility (GBIF) is an international organisation that focuses on making scientific data on biodiversity available via the Internet using web services. The data are provided by many institutions from around the ...; *'' Doassansia alismatis'' *'' Doassansia alpina'' *'' Doassansia borealis'' *'' Doassansia disticha'' *'' Doassansia domingensis'' *'' Doassansia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamogeton
''Potamogeton'' is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (''Elodea canadensis''). The genus name means "river neighbor", originating from the Greek ''potamos'' (river) and ''geiton'' (neighbor). Morphology ''Potamogeton'' species range from large (stems of 6 m or more) to very small (less than 10 cm). Height is strongly influenced by environmental conditions, particularly water depth. All species are technically perennial, but some species disintegrate in autumn to a large number of asexually produced resting buds called turions, which serve both as a means of overwintering and dispersal. Turions may be borne on the rhizome, on the stem, or on stolons from the rhizome. Most species, however, persist by perennial creeping rhizomes. In some cases the turions are the only means to differentiate species. The leav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alisma
''Alisma'' is a genus of flowering plants in the family Alismataceae, members of which are commonly known as water-plantains. The genus consists of aquatic plants with leaves either floating or submerged, found in a variety of still water habitats around the world (nearly worldwide). The flowers are hermaphrodite, and are arranged in panicles, racemes, or umbels. ''Alisma'' flowers have six stamens, numerous free carpels in a single whorl, each with 1 ovule, and subventral styles. The fruit is an achene with a short beak. The nineteenth century British art and social critic John Ruskin believed that the particular curve of the leaf-ribs of ''Alisma'' represented a model of ' divine proportion' and helped shape his theory of Gothic architecture.J. Mordaunt Crook, "Ruskinian Gothic" in The Ruskin Polygon: Essays on the Imagination of John Ruskin ed. John Dixon Hunt and Faith M. Holland (Manchester University Press, 1982) pp. 65–93. ''Copóg Phádraig'' ("Patrick's leaf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagittaria Lancifolia
''Sagittaria lancifolia'', the bulltongue arrowhead, is a perennial, monocot plant in the family Alismataceae, genus ''Sagittaria'', with herbaceous growth patterns. It is native to the southeastern United States. It is known from every coastal state from Delaware to Texas. The species is also considered native to Mexico, Central America, the West Indies and northern South America. It has become naturalized on the Island of Java in Indonesia. A common name is "duck potato" because of the large potato-like corms which can form underground. Description The plant is conspicuous for its large, lance-shaped leaves which grow up from underground rhizomes and its showy, white three-petaled flowers which form at the end of long, thick stalks. Each flower has three green sepals, three white or pink-tinged petals, at least six stamens, and pistils which may be in separate flowers. The plant likes to grow in fresh or brackish water and is commonly found in ditches, marshes, swamps an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocotyledons
Monocotyledons (), commonly referred to as monocots, (Lilianae ''sensu'' Chase & Reveal) are grass and grass-like flowering plants (angiosperms), the seeds of which typically contain only one embryonic leaf, or cotyledon. They constitute one of the major groups into which the flowering plants have traditionally been divided; the rest of the flowering plants have two cotyledons and are classified as dicotyledons, or dicots. Monocotyledons have almost always been recognized as a group, but with various taxonomic ranks and under several different names. The APG III system of 2009 recognises a clade called "monocots" but does not assign it to a taxonomic rank. The monocotyledons include about 60,000 species, about a quarter of all angiosperms. The largest family in this group (and in the flowering plants as a whole) by number of species are the orchids (family Orchidaceae), with more than 20,000 species. About half as many species belong to the true grasses (Poaceae), which are ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
