B-Chromosomen bei der Gattung Leucanthemum (Asteraceae) in der Tschechoslowakei
1974
The taxonomic arrangement and the karyological analysis of 166 populations ofLeucanthemum demonstrates the existence of 5 taxa for Czechoslovakia; they are grouped provisionally intoL. rotundifolium (W. K.) DC. (2n = 18) and the polyploid complexL. vulgare
Lam. with “subsp.vulgare” (2n = 18), “subsp.alpicola” (2n = 18), “subsp.ircutianum” (2n = ± 36) and “subsp.pannonicum” (2n = ± 54). B-chromosomes have not been traced in diploids but have turned up in great numbers in tetraploid (21%) and hexaploid populations (20%). Their presence is not apparent from external characters. Diploids and polyploids evidently are selfsterile.
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