178 



BRITISH DISCOMYCETES. 



or brownish space. When old the hymenium separates 

 from the excipulum in the manner of an operculum, 

 which led the illustrious Fries to place it in his genus 

 Eustegia. 



Name Arundinaceus, belonging to a reed. 



Shrewsbury ! 



SUBGENUS II. PYRENOPEZIZA. Fckl. (in part). 



Cup erumpent or superficial, globose, then expanded* 

 opening at first by a minute pore; glabrous or fur- 

 furaceous, often vertically plicate, black, cinereous, or 

 dark brown (except elaphines) ; sporidia elliptic, fusiform 

 or filiform, simple, rarely uniseptate, hyaline. (Plate VI. 

 fig. -S3.) 



Name Trvpfiv, a kernel, and peziza ; from the globose 

 form. 



ARRANGEMENT OF THE SPECIES. 



A. Cups superficial. 



(a) Sporidia elliptic or oblong 

 (&) Sporidia sub fusiform 

 (c) Sporidia filiform 



B. Cups erumpent. 



(a) Sporidia elliptic or oblong . . 



(6) Sporidia fusiform or elongate -fusiform 



(c) Sporidia cylindrical or acicular 



species 12 

 13-19 

 20-21 



22-24 



25-27 

 28-32 



2.4 



^H KEY TO THE SPECIES. 



Hymenium fuscous-black: on wood. . 



Hymenium fuliginous : on Typha 



Hymenium brown 



Hymenium cinereous 



Hymenium whitish or watery-grey . . 



Hymenium pallid 



Externally brown, scabrous : on Arctium 



Externally brownish ; margin striate : on Juncus . . 



Externally umber-brown, rugnlose; margin fim- 

 briate : on grass 



Externally pale umber-brown, farinoso-tomentose : 

 on UmbelUferae 



Externally black, rugose ; margin crenulate, paler : 

 growing in lines on Plctntago 



Externally blackish, mealy ; margin entire : on 

 Plantago 



Externally black, scabrous, rugose; margin con- 

 tracted 



Externally blackish, squamulose : on Digitalis . . 



fcecunda. 



Typhae. 



1 



2 



3 



lignicola. 



Arciii. 



micrometm. 



gramin is. 

 Grevellei. 

 nervisequia. 

 Plantaginis. 



jugosa. 

 Diyitalina. 



