Five taxa of Lepiota, namely, L. anthomyces, L. serena, L. metulaespora, L. roseoalba and L. cristata were collectedfrom different localities are described in details. Microscopic and macroscopic descriptions along with drawings are given for all the five species. Of  these   L. anthomyces, L. serena, L. metulaespora and L. roseoalba,are newly recorded for Iranian fungus flora.

Gloger's rule posits that darker birds are found more often in humid environments than in arid ones, especially in the tropics. Accordingly, desert-inhabiting animals tend to be light-colored. This rule is also true for certain mammalian groups, including humans. Gloger's rule is manifested at 2 levels: (1) at the species level (different populations of the same species have different pigmentat...

this research summarizes the data on benthic macro invertebrates collected from 25 points in the urmia lake wetlands during november 2008 to february 2009. the purpose of the study was to assess the effects of elevated salinity and nutrient (nitrogen and phosphorus) levels on macro invertebrate abundance and composition. a total of 32 taxa were collected, and the common taxa, including chironom...

Mouse opossums of the genus Marmosa Gray (Didelphidae) represent a complex of taxa with poorly understood affinities. Species now placed within this genus are mostly the leftovers from previous taxonomic arrangements. Even the most recent and complete revisions have not fully resolved the relationships among Marmosa and the many taxa previously included in Marmosa or listed as synonyms of it. H...

The present study provides new data concerning the external morphology of the labial segments of 46 species from nine Nepomorpha families using the scanning electron microscope. The labial segments are described in detail and images of their structures are presented for the systematic groups. Subsequent segments of the labium (I, II, III, and IV) are shaped similarly in all investigated taxa bu...

In the framework of study on wood inhabiting Hyphomycetes inChalus vicinity, Mazandaran (Iran), during 2005-2006, 21 taxa belonging to different genera were identified. Among them, nine taxa have already been recorded from Iran and the other taxa are new to Iran which are listed as follows: Arthrobotryum stilboideum, Chloridium preussi, C. virescens var. virescens, Codinaeopsis gonytrichoides, ...

Abstract An updated checklist of the Calabrian alien vascular flora is presented. By way field, bibliographic, and herbarium research, we recorded 382 taxa (representing almost 14% all regional flora), which 371 are angiosperms, nine gymnosperms, two ferns. In relation to state spread, majority species casual (207 taxa; 54%), followed by naturalized (127; 33%) invasive (48; 13%), these last inc...

Specimens belonging to the Cymbellaaffinis / Cymbellatumidula / Cymbellaturgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations. Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material. In addition to light microsco...

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...