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Como consecuencia de las campanas botanicas y estudios de laboratorio realizados durante los anos 1977 y 1978 en Donana, sobre la flora micologica de este interesante ecosistema, se han conseguido determinar 168 especies de hongos. El... more
Como consecuencia de las campanas botanicas y estudios de laboratorio realizados durante los anos 1977 y 1978 en Donana, sobre la flora micologica de este interesante ecosistema, se han conseguido determinar 168 especies de hongos. El area comprendida en esta investigacion abarca el triangulo que va desde Rota (Cadiz) a Hinojos y Mazagon (Huelva), encuadrado en la provincia corologica Gaditano-Onubo-Algarviense, sector Onubense litoral (Rivas-Martinez & al. 1977) con un predominio eminente de dunas litorajes. En definitiva, se han encontrado 5 generos nuevos para el catalogo micologico espanol, a saber: Bovistella Morg., Globulicium Hjortst., Botryohypochnus Donk, Clitocybula (Sing.) Met. y Streptothrix Corda. Las especies nuevas encontradas han sido las 24 siguientas: Gloniopsis levantica , Leucoscypha patavina , Hypoxilon serpens , Streptothrix fusca , Sebacina calcea , Clitocybula lenta , Collybia konradiana, Crepidotus pubescens , Lepiota konradii , Melanoleuca decembris , Melan...
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The pollen present in food reserves, pollen masses and honey, stored in an aerial nest of Bombus atratus was investigated. Field observations were also made. 23 pollen morphological types, belonging to 16 families of plants, were... more
The pollen present in food reserves, pollen masses and honey, stored in an aerial nest of Bombus atratus was investigated. Field observations were also made. 23 pollen morphological types, belonging to 16 families of plants, were identified. The principal sources of nectar were: Eucalyptus spp., Aptenia cordifolia, Lagerstroemia indica and Salvia microphylla. While Solarium spp. and Liliaceae, were the main sources of pollen. These analyses of pollen reserves and honey, coupled with field observations, allow a reconstruction of the wide foraging spectrum of Bombus atratus.