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Remarks on the taxonomy and nomenclature of the Stipa tianschanica complex (Poaceae), on the base of a new record for the flora of Tajikistan (central Asia)
Author(s) -
Nobis Marcin
Publication year - 2011
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.2010.00869.x
Subject(s) - stipa , taxon , biology , taxonomy (biology) , flora (microbiology) , botany , nomenclature , poaceae , lemma (botany) , central asia , key (lock) , ecology , geography , paleontology , physical geography , bacteria
The taxonomic position and distribution of Stipa tianschanica Roshev, a species new to the flora of Tajikistan (central Asia), are discussed. Its morphological characters are compared with other members of the S. tianschanica complex and information on their taxonomy and distribution are presented. The distinguishing features of S. tianschanica subsp. tianschanica , S. tianschanica subsp. gobica (Roshev.) D. F. Cui and S. klemenzii Roshev. are presented in a table, together with photographs of their lemma surfaces and a list of their synonyms. Analysis of the morphological characters of the taxa provides new information on their variability and a new combination, S. tianschanica subsp. gobica var. pubescens (Hanelt & Davažamc) M. Nobis comb. nov., is proposed. A key to the taxa of Stipa sect. Smirnovia Tzvel. occurring in Tajikistan (especially in the area of Pamirs), a description of S. tianschanica subsp. tianschanica and illustrations of the most important diagnostic characters of the taxon are included.