186 
Trichia, Haller. 
T. fragilis, Rost. On dead wood. 
T. varia, Rost. On dead moss. 
T. abrupta, Cke. On dead wood. 
T. scabra, Rost. On dead wood. 
T. fallax, Rost. On rotten wood. 
DIDYMEAE. 
Chondrioderma, Rost. 
C. floriforme, Rost. On mosses. 
C. difforme, Rost. On dead hawthorn leaves. 
Didymium, Schrad. 
D. farinaceum, Schrad. On living moss. 
D. squamulosum, Fries. On dead leaves. 
D. microcarpon, Rost. On dead leaves. 
D. Clavus, Rost. On dead twigs. 
D. Serpula, Fries. On dead oak leaves. 
Lepidoderma, De Bary. 
L. tigrinum, Rost. On rotten wood. 
Spumaria, Pers. 
8. alba, DC. On living grass. 
Diachaea, Fries. 
D. leucopoda, Rost. On dead leaves. 
PHYSAREAE, 
Craterium, Trent. 
C. confusum, Mass. On dead grass. 
` C. aureum, Rost. On dead bark. 
Physarum, Pers. 
P. leucopus, Rost. On dead wood. 
P. leucophæum, Fries. On dead twigs and moss. 
P. cinereum, Rost. On dead twigs. 
F. contextum, Rost, On bark and moss. 
