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Centothecoideae
Panicoideae is the second-largest subfamily of the grasses with over 3,500 species, mainly distributed in warm temperate and tropical regions. It comprises some important agricultural crops, including sugarcane, maize (or corn), sorghum, and switchgrass. C4 photosynthesis evolved independently a number of times in the subfamily, which presumably had a C3 ancestor. Description The ligule has a fringe of hairs. The inflorescence is branched around a common axis. The spikelets are all alike with two bisexual florets that are joined below the glumes (the outer floral envelopes). The lower glume is shorter than the spikelet. Systematics and taxonomy Within the PACMAD clade of grasses, the Panicoideae are sister to a clade made of the four subfamilies Arundinoideae, Chloridoideae, Danthonioideae, and Micrairoideae. A modern phylogenetic classification divides the Panicoideae in twelve tribes corresponding to monophyletic clades; two genera, ''Chandrasekharania'' and ''Jansenella'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tristachyideae
Tristachyideae is a tribe of the Panicoideae subfamily in the grasses (Poaceae), native to tropical and subtropical regions of Africa, Asia, and South America. There are around 70 species in eight genera. The tribe belongs to a basal lineage within the subfamily, and its genera were previously placed in tribes Arundinelleae or Paniceae, subfamily Arundinoideae, or the now-obsolete subfamily Centothecoideae. Species in this tribe use the C4 photosynthetic pathway. Genera *''Danthoniopsis'' *''Dilophotriche'' *'' Gilgiochloa'' *''Loudetia'' *''Loudetiopsis'' *'' Trichopteryx'' *''Tristachya ''Tristachya'' (common name trident grasses) is a genus of African and Latin American plants in tribe Tristachyideae within the Poaceae, grass family. ; Species ; formerly included see ''Danthoniopsis Dilophotriche Loudetia Loudetiopsis Trichop ...'' *'' Zonotriche'' References External links * * Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miscanthus Sinensis
''Miscanthus sinensis'', the eulalia or Chinese silver grass, is a species of flowering plant in the grass family Poaceae, native to eastern Asia throughout most of China, Japan, Taiwan and Korea. Description It is an herbaceous perennial grass, growing to tall, rarely , forming dense clumps from an underground rhizome. The leaves are tall and 0.3–2 cm broad. The flowers are purplish, held above the foliage. This plant is the preferred structure for the nesting of some species of paper wasps, such as '' Ropalidia fasciata''. Nomenclature The Latin specific epithet ''sinensis'' means "from China", though the plant is found elsewhere in eastern Asia. Forms and varieties *''M. sinensis'' f. ''glaber'' Honda *''M. sinensis'' var. ''gracillimus'' Hitchc. *''M. sinensis'' var. ''variegatus'' Beal *''M. sinensis'' var. ''zebrinus'' Beal Cultivation It is widely cultivated as an ornamental plant in temperate climates around the world. It has become an invasive species in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jansenella
''Jansenella'' is a genus of Asian plants in the grass family. ; Species * '' Jansenella griffithiana'' (C.Muell.) Bor - India, Sri Lanka, Myanmar * '' Jansenella neglecta'' S.R.Yadav, Chivalkar & Gosavi - Maharashtra Maharashtra (; , abbr. MH or Maha) is a states and union territories of India, state in the western India, western peninsular region of India occupying a substantial portion of the Deccan Plateau. Maharashtra is the List of states and union te ... References Panicoideae Poaceae genera {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyperochloeae
Cyperochloeae is a small tribe of grasses in the Panicoideae subfamily, found in Australia. It belongs to a basal lineage within the subfamily and has only two species in two 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 ... genera, '' Cyperochloa'' and '' Spartochloa''. They use the C3 photosynthetic pathway. References External links * * Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centotheceae
Centotheceae is a small tribe of grasses with six species in two genera, distributed in Africa and Asia. It belongs to a basal lineage Lineage may refer to: Science * Lineage (anthropology), a group that can demonstrate its common descent from an apical ancestor or a direct line of descent from an ancestor * Lineage (evolution), a temporal sequence of individuals, populat ... in subfamily Panicoideae, sometimes referred to as "centothecoid clade". Unlike many other clades in the subfamily Panicoideae, they use the C3 photosynthetic pathway. References Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steyermarkochloeae
Steyermarkochloeae is a tribe of the Panicoideae subfamily in the grasses ( Poaceae), native to tropical South 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 sout .... There are only two species in two genera, '' Arundoclaytonia'' and '' Steyermarkochloa''. The tribe probably belongs to a basal lineage within the subfamily. Species in this tribe use the C3 photosynthetic pathway. References External links * * Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeugiteae
Zeugiteae is a tribe of the subfamily Panicoideae in the grasses (Poaceae), native to Africa, Asia, Australasia, South and Central America. There are 18 species in four genera. The tribe belongs to a basal lineage within the subfamily. Species in this tribe use the C3 photosynthetic pathway. Genera *'' Chevalierella'' *'' Lophatherum'' *'' Orthoclada'' *''Zeugites'' (syn. ''Calderonella'', ''Pohlidium ''Pohlidium'' is a genus of Panamanian plants in the grass family. The only known species is ''Pohlidium petiolatum'', native to Coclé Province Coclé () is a province of central Panama on the nation's southern coast. The administrative capit ...'') References External links * * Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chasmanthieae
Chasmanthieae is a small tribe of grasses in the subfamily Panicoideae Panicoideae is the second-largest subfamily of the grasses with over 3,500 species, mainly distributed in warm temperate and tropical regions. It comprises some important agricultural crops, including sugarcane, maize (or corn), sorghum, and swi .... It belongs to a basal lineage within the subfamily and has only seven species in two genera, '' Bromuniola'' with one species in Africa and '' Chasmanthium'' from North America. They all use the C3 photosynthetic pathway. References External links * * Panicoideae Poaceae tribes {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloroplast DNA
Chloroplast DNA (cpDNA) 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, a great number of chloroplast DNAs 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 30–60 micrometers, and have a mass of about 80â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gynerieae
''Gynerium'' is a monotypic genus of Neotropical plants in the grass family, native to Mexico and Colombia, Central America, South America, and the West Indies. It is classified in its own tribe Gynerieae. The sole species in the genus is ''Gynerium sagittatum'', a tall grass that grows up to six metres (twenty feet) high. It is a very vigorous species that grows into a considerably dense mass of vegetation. The species is known as "cana-do-rio", "cana-flecha", "cana-frecha", "ubá" and "cana-brava" in Brazil, "caña brava" in Peru and Colombia, "chuchÃo" in eastern Bolivia, and "tañil" in Guatemala and other Spanish speaking countries. It is known in English as "wildcane" or "wild cane", while "arrow cane" is less common (''sagitta'' is Latin for '' arrow''). Description The stems are straight and erect, the lower part is covered with "vainas" from the fallen leaves, while in the middle part the leaves are arranged in fan shaped groups. The upper part, round and thin, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arundinelleae
Arundinelleae is a tribe of grasses with roughly 90 species in three genera, mainly distributed in tropical and subtropical areas. The tribe's sister group are the Andropogoneae The Andropogoneae, sometimes called the sorghum tribe, are a large tribe of grasses (family Poaceae) with roughly 1,200 species in 90 genera, mainly distributed in tropical and subtropical areas. They include such important crops as maize (corn), ..., with which they are classified in supertribe Andropogonodae. All species in this tribe use C4 carbon fixation. References Panicoideae Poaceae tribes {{Poaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andropogoneae
The Andropogoneae, sometimes called the sorghum tribe, are a large tribe of grasses (family Poaceae) with roughly 1,200 species in 90 genera, mainly distributed in tropical and subtropical areas. They include such important crops as maize (corn), sugarcane, and sorghum. All species in this tribe use C4 carbon fixation, which makes them competitive under warm, high-light conditions. Andropogoneae is classified in supertribe Andropogonodae together with its sister group Arundinelleae. Subdivisions include 12 subtribes, but the position of several genera within them is still unresolved (''incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...''). Hybridisation (biology), Hybridisation was probably important in the evolution of the Andropogoneae, and the tribe's systemat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
