Diplostephium Azureum
   HOME

TheInfoList



OR:

''Diplostephium'' is a genus of trees and shrubs in the family
Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...
.Kunth, Karl (Carl) Sigismund. 1818. Nova Genera et Species Plantarum (folio ed.) 4: page 75, plate 335.Tropicos, ''Diplostephium'' Kunth
/ref> ''Diplostephium'' is distributed on high mountains zones from
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
to
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
with the exception of two species in
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
(INBio information system, July 2005) and twelve in the "Sierra Nevada de Santa Marta" (Colombia). It makes part of the high andean forest and the paramo ecosystems.
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
has the most species with 63 (Vargas & Madriñán, 2006), the majority of them found in the Oriental Cordillera, which has 33 registered species until this moment. Diplostephium is the third most diverse genus on the paramos with 70 species after ''Pentacalia'' and ''Senecio'' (Luteyn, 1999). According to
José Cuatrecasas José Cuatrecasas (1903–1996) was a Spanish botany, botanist. He was born on March 19, 1903, in Camprodon, Catalonia, Spain. His research focused on the high-elevation páramo and sub-páramo regions of the Andes Mountains in South America, e ...
, (1986) the genus is an element of Neotropical origin that could have reached the paramos from the southern latitudes of South America; where the primitive arboreal species can be found in the high Andean forest while the most advanced members can be found in the paramos and super-paramos. This reinforces previous theories from Cuatrecasas (1969), who proposed as atavistic characteristics the morphologies present in the arboreal species of high Andean forest. Based on this, Cuatrecasas made a phylogenetic ordination into natural groups or series where the derived species are more diverse and are found at high altitudes. Species accepted by the
Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...
as of December 2022:


References


External links


Welcome to ''Diplostephium'', a webpage devoted to the study of the genus and its allies.
{{Taxonbar, from=Q2712859 Flora of Southern America Asteraceae genera Páramo flora