Monographs Details: Croton longiradiatus Lanj.
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Description:Distribution and Ecology - Distribution. Known only from the type locality.

Discussion:While Croton longiradiatus is closely related to C. pullei with respect to shape, size, subcordate outline of leaf and biglandularity of leaf base, as well as the axillar disposition of the inflorescence, it differs from C. pullei by the more membranaceous texture of the blade and the distinctly three-nerved leaf base. There is also some similarity to C. caryophyllus of Belem, Brazil, and C. billbergicus of Panama, but differing from these by the obovate shape of the [male] petals.