Order 2. Ostropaceæ. Ostropa.
Sub-Family 3. Tryblidiales.
The apothecia are embedded in the substratum in the early stages, and then are raised high above it. Hypothecium thick. Hymenium cup-shaped.
Order 1. Tryblidiaceæ. Tryblidium.
Order 2. Heterosphæriaceæ. Heterosphæria patella on the dead stalks of Umbellifers.
Sub-Family 4. Dermateales.
The apothecia in the early stages are embedded in the substratum and then break through it, or are from the first situated on the surface of the substratum. Hypothecium thick.
Order 1. Cenangiaceæ. Cenangium.
Order 2. Dermateaceæ. Dermatea.
Order 3. Patellariaceæ. Patellea, Biatorella, Patellaria.