In the second group, Ascomycetes, or "Spore sac fungi," the spores are produced in delicate sacs called asci.
"Among the Mushrooms" by Ellen M. Dallas and Caroline A. Burgin
Another very large group of fungi is the Ascomycetes, or sac fungi.
"The Mushroom, Edible and Otherwise" by M. E. Hard
Asci formed from the fertile cells of a hymenium ASCOMYCETES.
"Fungi: Their Nature and Uses" by Mordecai Cubitt Cooke
The family Ascomycetes is rich in genera and species.
"Student's Hand-book of Mushrooms of America, Edible and Poisonous" by Thomas Taylor
Ascomycetes, 189, 217, 269.
"Disease in Plants" by H. Marshall Ward