A new species of Didymodon (Bryophyta, Pottiaceae), from northern South America

摘要

A new moss species, Didymodon molendoides J.A.Jiménez & M.J.Cano, is described and illustrated from the Andes of Venezuela and Ecuador. It differs most saliently from congeners by the combination of the appressed and imbricate leaves when dry, plane leaf margins throughout, the yellowish green to green color in KOH, a bistratose lamina above midleaf, cross-section of the costa without ventral stereids, and laminal cells with coarse and scattered papillae over the lumen.