Abstract

LORENCE, David. Lectotypification of Didymaea mexicana Hook. f (Rubiaceae, Rubieae) and the identity of D. alsinoides (Schltdl. & Cham.) Standl.. Act. Bot. Mex [online]. 2009, n.88, pp.73-79. ISSN 2448-7589.

The name Didymaea alsinoides (Schltdl. & Cham.) Standl. has been incorrectly applied to a common and wide-ranging Mexican and Central American species whose correct identity is Didymaea Mexicana Hook. f. In this paper a lectotype is selected and designated for D. Mexicana. The characters separating these two frequently confused species are discussed. Further systematic studies of the genus Didymaea are suggested.

Keywords : Central America; Didymaea; Mexico; Rubiaceae; typification.

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