Preslia 87: 109–162, 2015 109 Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic Taxonomická revize jeřábů z podrodu Aria vyskytujících se v České republice Martin L e p š í1,2,PetrLepší3,PetrKoutecký2,JanaBílá4 &PetrVít5 1South Bohemian Museum in České Budějovice, Dukelská 1, CZ-370 51 České Budějovice, Czech Republic, e-mail:
[email protected]; 2Department of Botany, Faculty of Sci- ence, University of South Bohemia, Branišovská 31, CZ-370 05 České Budějovice, Czech Republic, e-mail:
[email protected],
[email protected]; 3AOPK ČR, Administration of the Blanský les Protected Landscape Area, Vyšný 59, CZ-381 01 Český Krumlov, Czech Republic, e-mail:
[email protected]; 4Department of Botany, Faculty of Science, Charles University in Prague, Benátská 2, CZ-128 01 Prague, Czech Republic, e-mail:
[email protected].; 5Institute of Botany, The Czech Academy of Sciences, CZ-252 43 Průhonice, Czech Republic, e-mail:
[email protected] Lepší M., Lepší P., Koutecký P., Bílá J. & Vít P. (2015): Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic. – Preslia 87: 109–162. Results of a taxonomic revision of Sorbus subg. Aria occurring in the Czech Republic are pre- sented in a central-European context. Flow cytometry and multivariate morphological analyses were employed to assess the taxonomic diversity within the group. Diploid, triploid and tetraploid taxa were detected. Diploids are represented by a single species, Sorbus aria, which is morpho- logically very variable. This extensive variability is specific to this species and separates it, among other characters, from polyploid taxa. An epitype for S.