mollisia cinerea

The fruiting body is flat bowl- to key-shaped. He is without a stalk and is pointlike attached. Its diameter is 1 to 2.5 millimeters. He is usually pale gray in color, at drying it gets a little brighter. The exterior is finely "clay-like" ,same color to light tan. The spore diameter 6.5 to 9 (rarely to 13) × 2 to 3 micrometers. They are hyaline, elliptic-oblong, slightly curved and smooth. The asci measure 40-65 × 4 to 5.5 microns and are cylindrical. The paraphyses have a diameter of 2.5 to 4 microns, and are cylindrical. They point to deep-seated septa.
---Occurrence and ecology:
The species grows on dead wood of deciduous trees, such as on oaks, birches and lindens. It is to find trough the year and very often. It is rarely parasitized by the fungus Sebacina fungicola---
( http://de.wikipedia.org/wiki/Mollisia_cinerea ) {google translated + bit correction}