@ARTICLE{TreeBASE2Ref15070, author = {Mihai Costea and Fiona Aiston and Sasa Stefanovic}, title = {Species delimitation, phylogenetic relationships and two new species in the Cuscuta gracillima complex (Convolvulaceae)}, year = {2008}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Canadian Journal of Botany}, volume = {}, number = {}, pages = {}, abstract = {Basic morphology, scanning electron microscopy, and DNA sequence data from the plastid trnLF region and the nuclear internal transcriber (ITS) spacer regions were used to delimit the species of a recently circumscribed clade of Cuscutathe C. gracillima complex from Mexico, Central and northern South Americaand to investigate their phylogenetic relationships. The group is characterized by inflorescences that appear to emerge directly from the hosts stems. Eight lineages were recognized, with two of them proposed here as new species: C. punana from Ecuador and C. vandevenderi from Mexico. Cuscuta colombiana is redefined to include C. aristeguietae, and C. deltoidea is broadened to encompass C. serruloba. A taxonomic treatment with an identification key, descriptions, and illustrations is provided; the biogeography and conservation status of the eight species are also discussed.} }

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