APPENDIX. 243 



base of C. elatum. The hairs are more delicate, not having half 

 the diameter, and the sporidia are scarcely more than half as long 

 or broad. A species of Po/j/acft's afterwards made its appearance 

 on the same mycelium on some portion of the twine left behind 

 with a few immature perithecia. 



Chsetomium murorum, Corda. Wall Bbistle-Mould ; 

 gregarious, glaucous, then blackish ; perithecium globose, brown; 

 hairs circinate, erect, septate, pulverulent j spores oblong, yel- 

 lowish. On plaster. Hare. (M. J. B.) 



Chsetomium rufulum, B. and Br. Rtjeods Bkistm- 

 MoTTLD ; perithecia subglobose, cellular, rufous, springing from 

 a thin mycelium ; asoi short, obtuse ; sporidia 8, globose, 

 granulate, biseriate. — On a paper box. 



Chaetomium griseum, Cooke. Geey Beisile-Mould; 

 subgregarious or scattered, grey or cinereous ; perithecia globose, 

 brown ; hairs long, elastic, circinate, pellucid, faintly and rarely 

 septate ; asoi clavate, fasciculate ; sporidia lemon - shaped, 

 colourless ; endoohrome granular or nucleate. — On old sacking, 

 rags, and paper. 



AscoTEiOHA, Berk. 



Perithecium thin, free, mouthless, seated on loose, branehed, 

 conidiiferous threads ; sporangia linear, containing dark 

 elliptic spores. — Berk. Outl., p. 405. 



Asootricha chartarum, B. Paper Mildew; perithecium 

 thin, olive-brown, seated on radiating flocoi ; sporangia linear, 

 numerous; spores broadly elliptic, chocolate-coloured.— On white 

 printed paper in a deal candle-box. King's Cliffe. (Plate XII. 

 figs. 254-256.) 



EnROTiTTM, Link. 



Perithecia reticulated, vesicular, coloured, attached to mucedi- 

 nous threads ; sporangia delicate. — Berh Outl., p. 405. 



EorotiuiiL hertaariorum., Lk. Hekbaeiitm Mould ; pen 

 thecium spherical, sub-depressed, yellow, seated upon radiating 

 expanded, branched, intricate flocci. — On plants in herbaria, and 

 various decaying substances. Very common. (Plate XII. figs. 

 260, 261.) This is the ascigerous condition of the common blue 

 mould, Aspergillus glaunts. 



