Corticium. Fr.
Entirely resupinate, hymenium soft and fleshy when moist, collapsing when dry, often cracked.
Corticium lacteum. Fr.
This is a very small plant, resupinate, membranaceous, and it is so named because of the milk-white color underneath. The hymenium is waxy when moist, cracked when dry.
Corticium oakesii. B. & C.
The plant is small, waxy-pliant, somewhat coriaceous, cup-shaped, then explanate, confluent, marginate, externally white-tomentose.
The hymenium is even, contiguous, becoming pallid. Spores elliptical, appendiculate.
I found very fine specimens of this plant on the Iron-wood, Ostrya Virginica, which grows on the high school lawn in Chillicothe. In rainy weather in October and November the bark would be white with the plant. It resembles a small Peziza at first.
Corticium incarnatum. Fr.
Waxy when moist, becoming rigid when dry, confluent, agglutinate, radiating. Hymenium red or flesh-color, covered with a delicate flesh-colored bloom. Some fine specimens were found on dead chestnut trees in Poke Hollow.