Abstract

REYES JARAMILLO, Irma; PEREZ-GARCIA, Blanca  and  MENDOZA RUIZ, Aniceto. Morfogénesis de los gametofitos de especies mexicanas de Pleopeltis (Polypodiaceae, subfamilia Pleopeltoideae). Rev. biol. trop [online]. 2003, vol.51, n.2, pp.321-332. ISSN 0034-7744.

The development and morphology of the gametophytes of seven species of ferns from genus Pleopeltis are described and compared. The spore germination is Vittaria-type in P. astrolepis, P. crassinervata, P. macrocarpa, P. polylepis and P. revoluta. For P. angusta and P. mexicana it was proposed a new germination pattern is Pleopeltis-type. The prothallial development is Drynaria-type in P. astrolepis, P. crassinervata, P. macrocarpa, P. polylepis and P. revoluta and Ceratopteris-type for P. angusta and P. mexicana. The gametangia are typical of the leptosporangiate ferns, sporophytes after six and a half months in culture did not appeared.

Keywords : epiphytic; gametophyte, fern; morphogenesis; Pleopeltis; Polypodiaceae.