CYTOTAXONOMY OF EUPHORBIA ESULA IN CANADA AND ITS HYBRID WITH EUPHORBIA CYPARISSIAS

Publisher Website
Google Scholar
Abstract
In 14 collections of leafy spurge from Ontario and Saskatchewan the chromosome number is 2n = 60. The problem of the correct botanical name of this plant is reviewed; all the North American collections seen are classed as E. esula L. sensu lato. The morphology and cytology of an artificial hybrid, E. cyparissias × E. esula, is described; its chromosome number is 2n = 50 and meiosis is irregular. The name E. × figertii Dörfler usually applied to this hybrid is rejected in favor of the prior name E. × pseudo-esula Schur.

This publication has 1 reference indexed in Scilit: