a specimen of an ascomycetous fungus collected during a field trip was identified as gymnoascus baran. soil samples collected from 0-20 cm depth were studied for isolation of fungi using a soil dilution plate method. based on the morphological and molecular characters the specimens were identified as gymnoascus reesii. genomic dna was extracted and a nuclear rdna region, containing the internal...

Three species of the genus Xylaria (Xylariaceae) are presented based on collections from Guilan Province, Iran. Both morphological and molecular characteristics were used in order to identify these species. Xylaria longissima sp. nov. is described and illustrated as a new Xylaria species and X. cf. striata and X. xylarioides are reported as new records from Iranian mycobiota. Xylaria longissima...