Cyclotrichium és un gènere de plantes d'angiospermes que pertany a la família de les Lamiàcies.
Cyclotrichium és un gènere de plantes d'angiospermes que pertany a la família de les Lamiàcies.
Dicerandra is a genus of flowering plants in the mint family. Dicerandra comprises 11 species: six perennial and five annual species. The perennials have narrow ranges in Central Florida with small population sizes and only occur on ancient dune ridges along the Lake Wales Ridge or the Atlantic coastal ridge; the annual species occur more broadly on sandhill habitats to the north. The perennials’ habitat has been severely fragmented due to human development over the past century. As a result, all perennial species except one are listed as federally endangered.[1][2] Annual species of the clade have large ranges when compared to perennial members, with distributions of annuals ranging for hundreds of miles from the Panhandle of Florida to southeastern Georgia,[3] with the exception of Dicerandra radfordiana which is endemic to two sites along the Altamaha river. The genus is characterized by hornlike spurs on their anthers.[4]
The phylogenetics of this genus have been studied before; first by Robin Huck in 1987, who described Section Dicerandra, which includes all species with standard-lobed corollas and exserted stamens, and section Lecontea which includes D. odoratissima and D. radfordiana that have cucullate-lobed corolla species with inserted stamens.[5] Subsequent studies by plant systematists at the University of Florida have confirmed these sections, in addition to discovering a potential chloroplast capture event in Dicerandra immaculata var savannarum.[3]
Dicerandra species are found along ancient sand-hill habitats in the southeastern US.[3] Northern, annual taxa occur mostly on acidic white sand that are remnants of ancient shorelines during the Pleistocene. Southern perennials either occur on red sands along the Lake Wales Ridge or on white sands along the Atlantic coast. They prefer open habitats free from tree cover and rapidly draining soils. Some, like Dicerandra cornutissima, have been reported along Interstate 75 where frequent machine clearing have provided a suitable habitat.[5]
Dicerandra is a genus of flowering plants in the mint family. Dicerandra comprises 11 species: six perennial and five annual species. The perennials have narrow ranges in Central Florida with small population sizes and only occur on ancient dune ridges along the Lake Wales Ridge or the Atlantic coastal ridge; the annual species occur more broadly on sandhill habitats to the north. The perennials’ habitat has been severely fragmented due to human development over the past century. As a result, all perennial species except one are listed as federally endangered. Annual species of the clade have large ranges when compared to perennial members, with distributions of annuals ranging for hundreds of miles from the Panhandle of Florida to southeastern Georgia, with the exception of Dicerandra radfordiana which is endemic to two sites along the Altamaha river. The genus is characterized by hornlike spurs on their anthers.
The phylogenetics of this genus have been studied before; first by Robin Huck in 1987, who described Section Dicerandra, which includes all species with standard-lobed corollas and exserted stamens, and section Lecontea which includes D. odoratissima and D. radfordiana that have cucullate-lobed corolla species with inserted stamens. Subsequent studies by plant systematists at the University of Florida have confirmed these sections, in addition to discovering a potential chloroplast capture event in Dicerandra immaculata var savannarum.
Dicerandra es un género de plantas fanerógamas perteneciente a la familia Lamiaceae.[1] Es originario del sudeste de Estados Unidos. Comprende 11 especies descritas y de estas, solo 9 aceptadas.[2]
El género fue descrito por George Bentham y publicado en Edwards's Botanical Register 15: pl. 1300. 1830.[3] La especie tipo es: Dicerandra linearis
A continuación se brinda un listado de las especies del género Dicerandra aceptadas hasta septiembre de 2014, ordenadas alfabéticamente. Para cada una se indica el nombre binomial seguido del autor, abreviado según las convenciones y usos.
Dicerandra es un género de plantas fanerógamas perteneciente a la familia Lamiaceae. Es originario del sudeste de Estados Unidos. Comprende 11 especies descritas y de estas, solo 9 aceptadas.
Dicerandra é um gênero botânico da família Lamiaceae[1]
Dicerandra là một chi thực vật có hoa trong họ Hoa môi (Lamiaceae).[2]
Chi Dicerandra gồm các loài:
Dicerandra là một chi thực vật có hoa trong họ Hoa môi (Lamiaceae).
