A new gland phenotype was observed in cotton (Cossypium hirsutum L.) segregating for Gl₂ and Gl₃. A genetic analysis was conducted to determine the inheritance of this character. It was found that the gene responsible was allelic to Gl₂. The new allele was designated Gl₂⁸. Gl₂⁸ in the homozygous condition (Gl₂⁸Gl₂⁸ gl₃gl₃) imparts reduced gland density in the cotyledons, as compared to Gl₂ or Gl₃, with apparent normal gland distribution in the stems and petioles.