4. Androgenesis. Three seedlings were found growing from one kernel. Each had its own root system. One of the three was a diploid but the other two were haploids. Fortunately the seed in question came from a cross in which the female parent was recessive for a and pl while the pollen parent was homozygous for the dominant alleles. The two haploid plants carried both the A and Pl alleles. It seems that we are forced to assume that two sperm nuclei developed into haploid sporophytes.