@ARTICLE{TreeBASE2Ref18534, author = {Benjamin W. van Ee and P. E. Berry}, title = {Taxonomy and Phylogeny of Croton section Heptallon (Euphorbiaceae)}, year = {2010}, keywords = {CROTON; EUPHORBIACEAE; MOLECULAR PHYLOGENY; NORTH AMERICA; SECTION ANGELANDRA; SECTION HEPTALLON}, doi = {10.1600/036364410790862461}, url = {}, pmid = {}, journal = {Systematic Botany}, volume = {35}, number = {1}, pages = {151--167}, abstract = {A taxonomic key, synonymy, and a molecular phylogeny of the nine species and three varieties of Croton section Heptallon (Euphorbiaceae) are presented. Section Angelandra is synonymized with section Heptallon, and the species from outside of North America that had been placed into these two sections are shown to belong in other clades within the genus. As circumscribed here section Heptallon is a well-supported clade of annual herbs and subshrubs that ranges from central Mexico to the eastern United States. A new combination, Croton heptalon, is made. Lectotypes are designated for C. corymbulosus, C. elliottii, C. ellipticus, C. engelmannii var. albinoides, C. eutrigynus, C. heptalon, and C. leucophyllus var. trisepalis.} }

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