>All had nearly the same value 44.6 picogram DNA per nucleus. >However a ""typical but large leaved white flowering form of J >Waddick had 36.4 pg This suggests that it a = hybrid b.= a new species. Dear All; I do not know the karyotype or chromosome number of Cryptostephanus. I was wondering if the typical form is a natural tetraploid and my odd plant might be a triploid. The ratio of DNA (44.6 versus 36.4) is close enough to suggest that. Does anyone know the ploidy of this species? Another odd thing about this 'off reading' is that the plant in question is considerably larger in stature than my 'pink form' or another typical white seedling. I'd think a tetraploid might be huskier than a triploid, not the opposite seen here. What might be happening here? Thanks Jim W. -- Dr. James W. Waddick Near KCI Airport Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 Zone 5 Record low -23F Summer 100F +