Cytogenetical Studies of Some Species of Himalayan Anemone and Ranunculus (Ranunculaceae)

Abstract

Karyomorphological studies along with determination of chromosome number in some species of Anemone and Ranunculus (Ranunculaceae) have been made. The species observed include Anemone obtusiloba D. Don., A. obtusiloba subsp. omalocarpella Druhl., A. vitifolia Buch.-Ham., Ranunculus diffusus DC., R. laetus Wall. and R. sceleratus L. Four different types of chromosomes have been observed in R. diffusus, R. laetus and R. sceletatus. Satellited chromosomes have been observed in R. diffusus. In all the cases, chromosomes with centromeres at median regions outnumbered the rest. Chromosomes in all the taxa under present investigation except in R. sceleratus is considerably large and symmetrical showing primitiveness of the species.