Diploid and Tetraploid Distribution of Allium wallichii Kunth(Ailiaceae)in the Yunnan-Guizhou Plateau
云贵高原多星韭二倍体—四倍体分布格局研究

Chromosome numbers and karyotypes of seventeen populations of Allium wallichii(Alliaceae) from the Yunnan-Guizhou Plateau were examined.The polyploidy distribution pattern of this species was analyzed based on 412 newly studied plants from seventeen populations and published data.Nine diploid populations and six diploid-tetraploid mixed populations occur in central to northwest Yunnan,while twelve tetraploid populations occur in the Yunnan-Guizhou Plateau.Diploids are 2A type except 'Shangri-La d'and Baosha...