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RESUMEN:Se describe el desarrollo del prótalo y del esporófito joven de Pteris quadriaurita Retz. Los especímenes fueron recolectados en un bosque mesófilo de montaña en Tototla, municipio de Xochicoatlán, estado de Hidalgo, México. Las esporas fueron sembradas en frascos de vidrio de 125 ml con cerámica (barro molido), piedra de río, tela de mosquitero y tres soportes de cultivo (tierra, maquique y musgo), todo previamente esterilizado y cerrado con plástico y alambre de cobre. El ciclo fue isospórico con desarrollo del prótalo tipo Ceratopteris. Los gametófitos fueron unisexuados masculinos, unisexuados femeninos y pocos bisexuados. Los esporófitos apogámicos se obtuvieron a los 231 días en musgo y maquique, mientras que en tierra de hoja no se formaron. ABSTRACT: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, Xochicoatlán municipality, State of Hidalgo, México. 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.

the plant they use occupy, administration and contraindication. Plants were purchased for identification. As a result of this work, 29 families, 55 genera and 56 species of plants that are commercialized in the two markets are recognized. Fifty-two people were interviewed, of whom 39 have a relationship with otomies and 13 who do not; 17 of them were men and 35 women, with ages ranging from 15 to over 60 years. The informants between 41 and 60 years have more knowledge. The plants sold in the markets cure 14 different types of diseases, including those of the digestive apparatus with 61, considering that more than one use is mentioned in the same plant, followed by those used for cultural syndromes with 35 references, those of the respiratory system with 26 citations and the urinary system with 20. The most commonly used parts are the leaves, flowers and the whole plant. The most used preparations are cooking followed by plant combination and the infusion. When obtaining the use value of each plant, the highest percentages were the epazote (Dysphania ambrosoides 23.4%), lemon (Citrus aurantiifolia 21.8%) and tila (Ternstroemia sylvatica 20.3%). Twenty-one of the plants mentioned in this work have not been cited as medicinal in previous research in the state of Hidalgo.

Se realizó el análisis palinológico de tres muestras de miel de Apis mellifera provenientes de tres localidades del estado de Morelos. Las muestras se procesaron siguiendo la técnica de acetolólisis de Erdtman levemente modificada. Se identificaron 23 tipos polínicos pertenecientes a 18 familias, de los cuales ocho presentan porcentajes mayores al 10% a mencionar: Arracacia sp. (Apiaceae); Asteraceae tipo 1 y tipo 2; Brassica sp. y tipo 1 (Brassicaceae); Chenopodiaceae-Amaranthaceae; Salvia sp. (Lamiaceae) y Lopezia sp. (Onagraceae). Las familias mejor representadas fueron: Asteraceae y Brassicaceae. Plantas arvenses y ruderales del estrato herbáceo fueron las más importantes. Se determinó que dos de las mieles analizadas fueron monoflorales y una fue multifloral. Palabras clave: Melisopalinología, caracterización de miel, miel monofloral, miel multifloral.