
%0 Journal Article
%A James, SH 
%T Chromosome Numbers and Genetic Systems in the Trigger Plants of Western Australia (<I>Stylidium</I>; Stylidiaceae)
%J Australian Journal of Botany
%D 1979/02/01
%V 27
%N 1
%P 17-25
%K 
%R https://doi.org/10.1071/BT9790017
%U https://www.publish.csiro.au/paper/BT9790017 
%X Chromosome numbers for 116 taxa of the genus Stylidium in south Western Australia are reported. The primitive number is n = 15, but haploid numbers ranging from 5 to 16 occur, with polyploidy on 13, 14 and 15. This dysploid variation is associated with a widespread occurrence of recessive lethal factors which eliminate most of the products of self-pollination at or soon after fertilization while permitting a majority of the cross-pollination products to survive. 
