Abstract

MATHIEU, Guido et al. New geophytic Peperomia (Piperaceae) species from Mexico, Belize and Costa Rica. Rev. Mex. Biodiv. [online]. 2011, vol.82, n.2, pp.357-382. ISSN 2007-8706.

Peperomia subgenus Tildenia is a poorly known group of geophytic species occurring in seasonal habitats in 2 biodiversity hot spots (Mexico-Guatemala and Peru-Bolivia) with few species reported from the countries in between. Recent fieldwork combined with detailed study of herbarium specimens of this subgenus in Mexico and Central America resulted in the discovery of 12 new species, which are here described and illustrated. In addition, 1 formerly published variety is raised to species rank. Distribution, habitat and phenology data and detailed comparisons with other species are included, as well as an identification key for all species belonging to this subgenus in the studied area.

Keywords : tuber; terrestrial; endemism; Tildenia.

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