240 



MCHENES. 



C. cristatella. Tuck. Earth. 



Baeomyces roseus, Pers. .Sterile clay soil, and sands. 



B. Byssoides. var. riipestris, Fr. Sterile sandy soil, etc. 



B. cEruginosa, Scop. Decaying wood in forests 



Biatora Russcllii, Tuck. Rocks. 



B. ostreata, Kccrb. Charred wood. 



B. coarctata. Th. Fr. Calcareous locks. 



