Chapter 29 - The Evolution and Diversity of Fungi - 29.3 - Sex in Fungi Involves Multiple Mating Types - 29.3 Recap - Learning Outcomes - Page 629: 4

Sac fungi are characterized by the production of asci sacs, which produce haploid ascospores upon maturation. The characteristic sexual reproductive structure of club fungi is called a basidium, which resides at the top of a specialized hypha as a single swollen cell. Since both nuclear fusion and meiosis occur in the basidium, it plays the same role in the club fungi as the ascus does in the sac fungi.

Sac fungi are characterized by the production of asci sacs, which produce haploid ascospores upon maturation. The characteristic sexual reproductive structure of club fungi is called a basidium, which resides at the top of a specialized hypha as a single swollen cell. Since both nuclear fusion and meiosis occur in the basidium, it plays the same role in the club fungi as the ascus does in the sac fungi.