The distribution of ribotypes in C. sections Douglasia and Coccineae and C. monogyna, C. × ninae-celottiae and C. × cogswellii in clades A2 (black), E (white), F (red) and H (green) on the ITS2 phylogenetic tree (Fig. 3). All proportions sum up to one. Ploidy is shown for each entity studied. Letters inside parentheses beside each species refer to the directions of ITS2 homogenization (M, biased towards the maternal ribotypes; P, biased towards the paternal ribotypes). Numbers inside parentheses on the bars indicate the number of accessions analysed. Ploidies in C. suksdorfii are indicated as follows: 3x̂ = allotriploid C. suksdorfii sampled from Haida Gwaii (2010-42); 3x-au = autotriploid C. suksdorfii; 3x* = allotriploid C. suksdorfiî sampled from Vancouver Island (JC385).