Archive image from page 9 of A cytological study of haploid. A cytological study of haploid Crepis capillaris plants cytologicalstudy64holl Year: 1930 114 University of California Publications in Agricultural Sciences [Vol. 6 and later figures show, division of the chromosomes within a cell does not always proceed synchronously. Usually, however, the divi- sion begins later, and the chromosomes in the shape of attached twin spheres pass irregularly to the poles (fig. 5, b, c) or one may be left out of the spindle and fail to reach a pole, giving rise to three iso-

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