@ARTICLE{TreeBASE2Ref19223, author = {Fernando Omar Zuloaga and Osvaldo Morrone and Mar?a Amalia Scataglini}, title = {Revision of Trichiochlaena, A New Genus Segregated from Panicum (Paniceae, Poaceae) Based on Morphological and Molecular Data}, year = {2010}, keywords = {Trichiochlaena, Gramineae, Grasses Panicum, phylogeny, taxonomy.}, doi = {}, url = {http://}, pmid = {}, journal = {Systematic Botany}, volume = {}, number = {}, pages = {}, abstract = { Taxonomic features of species of Panicum, previously classified in section Parvifolia and Verruculosa, are reviewed and compared with those of other taxa in the Paniceae. The new genus Trichiochlaena is proposed on the basis of shared morphological characters, such as plants with membranous ligules, inflorescences lax and open, spikelets ellipsoid to obovoid, pilose or glabrous, lower glume ? to 1/1 the spikelet length, and upper anthecium indurate with bicellular microhairs and simple papillae all over its surface. These morphological characteristics were confirmed with molecular phylogenetic studies, analyzing chloroplast ndhF and rpoA sequences. As a result, a total of 38 American and African species are considered within the genus Trichiochlaena, and therefore a total of 38 new combinations are proposed. The new genus is compared with other genera of the Paniceae. Lectotypes are designated for Isachne trochainii A. Camus, Panicum carannasense Mez, P. cyanescens var. rigidiusculum D?ll, Panicum frederici Rendle, P. helobium Mez ex Henrard, P. ianthum Stapf, P. natalense Hochst., P. pubiglume Stapf, P. stenocladium Trin., and P. schwackeanum Mez.} }

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