Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal. 2016. № 1(17). P. 76—83

 

03.00.00 BIOLOGICAL SCIENCES

UDC 582.394

Khrapko Olga Victorovna, Doctor of Biological Sciences, Chief Scientific Worker
Botanical Garden-Institute of the Far Eastern Branch RAS

 

BIOLOGICAL DIVERSITY OF Dryopteris GENUS OF RUSSIAN FLORA

Abstract

The article presents the analysis of taxonomy, geographical distribution, morphology, ecology and cenology of Dryopteris species of Russian flora. It is shown that 18 species of Dryopteris are distributed into 8 sections. The analysis of geographical distribution revealed 4 types of areas among which the East Asian type is the largest. Russian species of Dryopteris are mainly forest plants, which play the subdominant role in vegetable communities. Most species of Dryopteris belong to Nemoral plants. The morphological analysis revealed 3 types of fronds, 4 types of rootstocks and 4 groups of life-forms. The diversity of morphological characteristics of Dryopteris species is significantly bigger than that of other major genera of Woodsia and Athyrium. Genus Dryopteris is the most diverse in the pteridoflora of Russia. Heterogeneity of Dryopteris genus in taxonomy, distribution, ecological and cenotic peculiarities, biological and morphological characteristics suggest different ways of developing species composition of this genus in Russia.

Key words

Ferns, Dryopteris, distribution, morphology, life forms.

The full text of the article PDF (Russian)

 

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