-
By: Majure, Lucas - Judd, Walter S. - Soltis, Pamela S - Soltis, DougType: ArticleIn: Comparative CytogeneticsVolume: 6Series:Issue: 1Date: 2012Page Range: 53-77Publication Info: Pensoft Publishers 2012Subjects: Cactaceae Chromosome numbers Opuntia humifusa Opuntia macrorhiza Pleistocene refugia polyploid complex polyploidy