Division III
Nidulariacea.
Uterus filled with separate sporangia. 2413. Nidularia. Common peridium simple. Sporangia lenticular, fleshy, with sporidia in heaps in the middle. 2414. Myriococcum. Peridium simple, flocculent-furfuraceous, disappearing. Sporangia globose, with sporidia in round heaps. 2415. Polyangium. Peridium simple, membranous. Sporangia oblong, filled with a grumous mass.