نتایج جستجو برای: infrageneric taxa

تعداد نتایج: 30871  

Mohammad Reza Joharchi, Yasamin Nasseh,

In this paper, the new taxa Lepidium ferganense (Brassicaceae) was recorded for the flora of Iran for the first time. This taxon belongs to Irano-Turanian region. It was compared with the closest taxa in the present study. In addition, a morphological description, several Illustrations, and a distribution map were presented.

Journal: :رستنیها 0
زهرا توکلی مربی گروه علوم گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی، تهران مصطفی اسدی استاد پژوهش، بخش گیاه شناسی، مؤسسه تحقیقات جنگل ها و مراتع کشور، تهران امین زراعتکار دانشجوی دکتری گروه علوم گیاهی، دانشکده علوم زیستی، دانشگاه خوارزمی

in this study, a taxonomic status of the genus roemeria in iran is reviewed. the study of morphological characters of collected and herbarium specimens led to the introducing of two new taxa, namely, r. hybrida subsp. maculata and r. refracta var. alba. in addition, five synonymies are made as following: r. refracta var. albomarginata and r. refracta subsp. occidentalis as synonymies of r. refr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

Journal: رستنیها 2007

The genus Carex belongs to tribe Cariceae, subfamily Caricoideae and family Cyperaceae. This genus, with about 2000 species in the world and more than 50 species in Iran, is the largest genus among the family. In expedition to North West and West of Iran, two species, namely, Carex acuta and C. cilicica as new records and C. flava, C. rostrata and C. supina as reinvestigated species are reporte...

M. Ashouri Nodehi S. Saeidi Mehrvarz

Sorkhankol Wildlife Refuge with an area of 1209 ha is located in the central part of Anzali Wetland. In total, 81 species belonging to 35 families and 68 genera were surveyed and identified on the basis of a floristic study from July 2013 through June 2014. The largest families are Poaceae (11 taxa), Asteraceae (8 taxa) Apiaceae, Brassicaceae and Cyperacae (5 taxa). The dominant life forms were...

A totall of 500 Early Permian samples from the Chal-i-Sheh Formation in the Zagros Basin were examined palynollogically in order to determine the stratigraphical age of the formation and to assess the palaeogeopaphicd relatianships of this basin to the Southern and Northern Hemispheres during the Early Permian. Fifty-eight taxa were recorded including 46 pollen, 10 spore and 2 acritarch spe...

Journal: رستنیها 2009
A.A. ARJMANDI, H. EJTEHADI M.R. JOHARCHI V. NAZERI

Morphological, numerical and chemical taxonomy of the genus Crataegus was studied in the East and northeast of Iran. More than 80 fresh specimens as well as 50 herbarium specimens from different localities were examind. Using vegetative and reproductive morphological characters an identification key is provided for all taxa. For numerical taxonomy 85 morphological characters were measured and t...

Journal: رستنیها 2017

In a study on coprophilous fungi, different samples including cow, sheep and horse dung and mouse feces were collected from different locations in West and East Azarbaijan provinces (NW Iran). Isolation of the fungi was done based on moist chamber culture method. Purification of the isolated fungi was done by single spore culture method. Several fungal taxa were obtained. Identification of the ...

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