Abstract
Two plants in the progeny of a triploid of Crepis Bungei gave variable counts of ehromosomes in sporadic cells in the root-tips, one plant with twelve chromosomes, containing teils with numbers ranging from thirteen to seventeen.
One plant of Crepis Marschallii contained cells in its root-tips with a large V-shaped chromosome which had no mate. In one root-tip there was an extra chromosome in cells without the V-chromosome.
