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DOI: http://dx.doi.org/10.11646/phytotaxa.373.3.3

What is and what is not Taraxacum bithynicum (Compositae, Crepidinae)

BAHAR GÜRDAL, JAN ŠTĚPÁNEK, VOJTĚCH ZEISEK, JAN KIRSCHNER, NERİMAN ÖZHATAY

Abstract


The taxonomy, micromorphology, karyology and evolutionary relationships of Taraxacum bithynicum were studied using the original material and new samples from the summit area of Mt. Uludağ, Bursa Province, Turkey. It is sexual with 2n=16, considerably isolated in outer phyllary and achene characters. The nrDNA ITS Neighbor Net analysis shows relationships of T. bithynicum with members of T. sect. Scariosa. Taraxacum bithynicum is considered as a taxon endemic to the summit area of Uludağ. The exploration of the latter area also revealed another, probably related but agamospermous and triploid (2n=24) species that is decribed here as T. pseudobithynicum, also confined to Uludağ. The endemism in the Mt. Uludağ flora is briefly characterized, and the two species studied are expected to be related to other similar plants restricted to mountain areas of SW and S Anatolia. The history of the original gathering of T. bithynicum (Aucher-Éloy, no. 3540) and various concepts of this name in the literature are briefly discussed.


Keywords


Taraxacum pseudobithynicum, chromosome numbers, M. R. Aucher-Éloy, taxonomy, Eudicots

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