Gytological studies of Anemone nemorosa L. (Ranunculaceae)

Investigations of mitosis in 10 populations of Anemone nemorosa L. all indicated that this species has a chromosome number of 2 n = 30. No B chromosomes were found. There were no significant differences in chromosome morphology between the populations. Meiosis in the anthers, studied in three populations, was found to be mostly regular, with 15 bivalents, although occasional irregularities such as bridges and pentads were observed. Pollen viability was tested in 12 populations and although fairly low, with micro pollen grains in four of the populations, was not low enough to prevent a high proportion of fertilized achenes.