31 



small pentagonal or hexagonal, radiato-striate cells, globose, and 

 at first clothed on all sides with villose hairs, then glabrous, 

 brown or black at the apex ; asci at first seated on the tips of 

 branched threads forming globose clusters, afterwards free, 

 8-spored. Sporidia heaped together, then free, simple, ovate or 

 subfusiform Fehl. I find globose asci seated laterally on irregular 

 hyphse, filled with globose sporidia. 



Cephalotheca sulfurea FekL, on the underside of damp boards in 

 Mr. Percival's grapery at Henbury, near Bristol. The vUlae 

 are bright, sulphur-coloured, the threads and sporidia pale, 

 sulphur. Annals of Nat. Hist., No. 1,729, with a figure. 



GENUS 320, CH^TOMIUM.* Kze. 



Perithecium thin, brittle, mouthless. Asci linear, containing 

 dark, lemon-shaped sporidia. 

 Chaetomium elatum Kze and Schmidt. Leigh Wood, Bristol, Oct., 



1859, on an old, cast-off dress. 



C ■ graminis Rahenh, Eudlow, November, 1842. 



C ' rufulum R. and Rr. Batheaston, May, 1871, on an 



old paper box under a bell glass. Annals of Nat. Hist., 



No. 1,397, with a figure. 

 C chartarum Ehh. Batheaston, April, 1862, on damp 



paper in a tin box. 



GENUS 321. ASCOTRICHAt Berk. 



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

 conidiiferous threads. Asci linear, containing dark, elliptic, 

 sporidia. Annals of Nat. Hist., No. 116. 



Ascotricha chartarum Berk. Batheaston, June, 1874. The 

 conidia are at first developed in a mucous (hollow 1) globose 

 mass, which at length disappears, on damp paper. 



* Chaetomium, from chaite, a hair. 

 t Ascotricha, from ascos, a sac, and thrix, a hair. 



