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espanolRESUMEN: Se describe el desarrollo del protalo y del esporofito joven de Pteris quadriaurita Retz. Los especimenes fueron recolectados en un bosque mesofilo de montana en Tototla, municipio de Xochicoatlan, estado de Hidalgo, Mexico. Las esporas fueron sembradas en frascos de vidrio de 125 ml con ceramica (barro molido), piedra de rio, tela de mosquitero y tres soportes de cultivo (tierra, maquique y musgo), todo previamente esterilizado y cerrado con plastico y alambre de cobre. El ciclo fue isosporico con desarrollo del protalo tipo Ceratopteris. Los gametofitos fueron unisexuados masculinos, unisexuados femeninos y pocos bisexuados. Los esporofitos apogamicos se obtuvieron a los 231 dias en musgo y maquique, mientras que en tierra de hoja no se formaron. EnglishABSTRACT: The development of the prothalus and the young sporophyte of Pteris quadriaurita Retz. are described. Studied material was collected in a cloud forest in Tototla, Xochicoatlan municipality, State of Hidalgo, Mexico. The spores were sown in glass vessel of 125 ml prepared in the following manner: the glasses were layered with ceramic, river stone, mosquito net and three natural substrates (plant litter, maquique and moss) all previously sterilized and enclosed in plastic bag tied with copper wire. The cycle proved to be isosporeus with prothallial development corresponding to the Ceratopteris type. The gametophytes were only male, only female and few hermaphrodites. Young sporophytes were apogamous obtained around 231 days after sowing in moss and maquique, in plant litter, they were nor development.

polibotánica/polibotánica

DESCRIPCIÓN DEL DESARROLLO MORFOGÉNICO DE LOS PRÓTALOS Y ESPORÓFITOS JOVENES DE Pteris quadriaurita RETZ. (PTERIDACEAE-POLYPODIIDAE) EN TRES SOPORTES NATURALES