A new species of “sangre de drago” (Croton section Cyclostigma, Euphorbiaceae) from coastal Ecuador

Abstract

Croton churutensis is described as a new species of Croton section Cyclostigma endemic to lowland deciduous forests in coastal Ecuador. Its red latex is used locally in Guayas Province to treat wounds, stomach ulcers, and some skin conditions caused by fungal infections. The new species differs from its closest apparent relative, Croton hibiscifolius, in its arching-pendent inflorescences, short-pedicellate female flowers with quadrifid stigmas, more numerous stamens, laciniate stipules, and lower elevation habitat.