Karyological investigations on Erigeron canadensis L. and E. annuus (L.) Pers. from natural stands in Poland

K. Bijok, B. Kreńska, T. Pawlak


The number of chromosomes in metaphases root meristems of Erigeron canadensis L. (2n= 18) and E. annuus (L.) Pers. (2n=27) was determined. The chromosomes of both species showed a morphological differentiation - they were heterobrachial or isobrachial; E. annuus had an additional unpaired isobrachial chromosome.

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