References
van Ee, B.W., and P.E. Berry. 2009. The circumscription of Croton section Crotonopsis (Euphorbiaceae), a North American endemic. Harvard Papers in Botany 14: 61-70. Google Scholar
van Ee, B.W., and P.E. Berry. 2009. The circumscription of Croton section Crotonopsis (Euphorbiaceae), a North American endemic. Harvard Papers in Botany 14: 61-70. Google Scholar