Primeros registros de hongos gasteroides en la Reserva Forestal Nacional y Refugio de Fauna Silvestre Ajos-Bavispe, Sonora, México

gasteroid fungi associated with seven different vegetation types in the ajos-bavispe national forest reserve and wildlife refuge were seasonal sampled over one-year period. forty-two species representing the families geastraceae (14), agaricaceae (25), diplocystidiaceae (1) and sclerodermataceae (2) were determined in the 10 sampled localities. astraeus hygrometricus and crucibulum laeve were the most widely distributed; but most species showed a restricted distribution. the most species-rich genus was geastrum with 13 taxa. the highest number of species was found in pine-oak wood (20) and mezquital (15), and the lower in oak open wood (2) and subtropical scrub (3). all determined species are new records for the studied area, while geastrum arenarius and lycoperdon decipiens for the mexican mycobiota.