Picture to the left: Pollen (yellow, C, haploid) as a control. Endosperm (turquoise): 3C, 6C, 12C, 24C (multiples of a triploid set). Picture to the right: Nuclei from the scutellum (white): a 2C:4C:8C:16C row (multiples of a diploid set) can be recognized (H. SWIFT, 1953)