Abstract
The Stipa section Smirnovia Tzvel. includes 32 taxa. Of this number, 18 taxa, with glabrous (smooth or scabrous) awn columns, belong to the Stipa lipskyi group, which is the object of the present study. The centre of diversity of the studied group is located in the mountains of Middle Asia (Pamir Alai and Tian-Shan). Based on the examination of a large number of herbarium specimens (over 550 sheets), field observations, scanning electron microscopy observation of lemma micromorphology and statistical analysis of macromorphological characters, 12 taxa at the specific level were recognized on the area studied. Three species of hybrid origin, Stipa × tadzhikistanica M. Nobis, S. × brevicallosa M. Nobis, and S. × hissarica M. Nobis, as well as the variety S. lipskyi var. pilosivaginata M. Nobis, were described as new to science. Additionally, lectotypes for S. karataviensis Roshev. and S. longiplumosa Roshev. were designated and a new combination Stipa macroglossa subsp. kazachstanica (Kotuch.) M. Nobis was proposed. Numerous new localities, often far from the previously known distribution area, were reported for several species. Illustrations and a key to species and varieties are provided in addition to complete descriptions including information on nomenclatural types, synonymies, distributions, habitat and specimens examined.
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Acknowledgments
I would like to express my gratitude to the curators of BM, BRNU, E, FR, FRU, G, GAT, GFW, GOET, K, KFTA, KHOR, KRA, KRAM, LE, LECB, M, MSB, MW, PE, PR, PRC, TAD, TASH, UPS, W, WA, WU, as well as to Helmut Freitag (Kassel) and Miroslav Dvorský (Třeboň) for making the collections of the genus Stipa available for study. I am also grateful to Dr. Agnieszka Nobis, Dr. hab. Arkadiusz Nowak, Prof. Dr. hab. Ryszard Ochyra, Dr. Beata Paszko, Dr. hab. Zbigniew Szeląg, Prof. Dr. hab. Maria Zając, Prof. Dr. hab. Adam Zając, for discussion and valuable comments on the manuscript. I thank to Dr. hab. Arkadiusz Nowak (Opole) for his assistance during the field study, to Polina Gudkova (Bernaul, Russia) and Raul Gonzalo (Espania, Madrid) for sending the images of specimens from the S. lipskyi group and to Olga Woźnicka and Beata Stożek (Kraków, Poland) for their technical assistance in the preparation for the SEM process and the photography. The research was funded by the Polish Ministry of Science and Higher Education under KBN Grant No. N N303 306237.
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Nobis, M. Taxonomic revision of the Stipa lipskyi group (Poaceae: Stipa section Smirnovia) in the Pamir Alai and Tian-Shan Mountains. Plant Syst Evol 299, 1307–1354 (2013). https://doi.org/10.1007/s00606-013-0799-5
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DOI: https://doi.org/10.1007/s00606-013-0799-5