Polyploidy, Hybridization, and the Invasion of New Habitats
Experiments are described showing that most artificial autopolyploids derived from native or introduced perennial grass iade Hie California are far inferior in behavior eir field conditi ions than their diploid ancestors.In a single species, Ehrharta erecta in two o autotetraploid maintained itself for, respectively, 19 and 39 years, but rem locality of planting