Abstract

PENA-RETES, Ana Paola  and  DELGADILLO-MOYA, Claudio. Sexual condition in Mexican mosses. Rev. Mex. Biodiv. [online]. 2018, vol.89, n.1, pp.101-107. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2018.1.2079.

The proportion of dioicous or monoicous mosses in the Mexican flora was determined with the aid of a database for 983 species reported from Mexico. Information was available for 829 species, 458 (55%) of which are dioicous and 371 (45%) are monoicous. The remaining 154 species are either polyoicous, or have uncertain or unknown sexuality. Sporophytes are more frequently found in monoicous taxa, but the dioicous species produce both sporophytes and propagulae more frequently than the monoicous species, but the proportion of asexual structures and sporophytes vary in 13 of the most important moss families in Mexico. Mexican mosses, in general, follow similar sexual expression patterns as those in other parts of the world. Research by family may be advantageous to identify specific patterns. The relationship between sexual condition and microhabitat, regional geographical distribution or sporophyte and propagule production should be investigated for each family.

Keywords : Sexual expression; Dioicous; Monoicous; Bryophyta; Mexico.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )