%0 Journal Article %T Distribuci¨®n geogr¨¢fica y clave de las especies del g¨¦nero oritrophium (kunth) cuatrec.(asteraceae) %A ARANGUREN B %A Anairamiz %A MORILLO %A Gilberto %A FARI£¿AS %A Mario %J Acta Bot¨¢nica Venezuelica %D 2008 %I Fundaci¨®n Instituto Bot¨¢nico de Venezuela Dr. Tob¨ªas Lasser %X the genus oritrophium (asteraceae) is native of tropical and subtropical mountains from bolivia to mexico. an updated list and a species key are provided. illustrations of 13 species are included. a cluster analysis of the distribution by countries of the genus is presented. the 21 currently known species of the genus are found between 1500 and 5400 m asl. as a conclusion oritrophium has a disjunct distribution between north america and south america, with higher number of species and a higher endemism in ecuador, per¨² and venezuela. %K asteraceae %K biodiversity %K compositae %K endemism %K oritrophium. %U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0084-59062008000100006&lng=en&nrm=iso&tlng=en