astomous, bearing variously formed, radi- 

 ating, thread-like appendages. - - Er'ysipheae. 

 Mycelium persistent, brown, often bearing conidia, 

 sometimes inconspicuous or evanescent, 

 Pcrithecja globose or depressed, astomous, 

 always superficial. • - • Perisporieae. 



SUlBORDlBR HYPOCREACBAS. 



The genera included in this suborder are all closely related and 

 are not separated into families. 



SUBORDER SPHAERIACEAE. x 



A. Perithecia scattereil. stroma wanting {simple Sphaeriae.) 

 * Perithecia, superficial or erumpent-superficial. 



(a) Perithecia hairy. 

 Perithecia membranaceous, or coriacco-membran' 



aceous. ..... Trichosphaerieae. 



Perithecia thinmembranaceous, with an apibal 



tult of hairs, lignicolous. - i , ■ • Ghaetomieae. 

 Perithecia carbonaceous or subcarboq- 



aceous. - - Melanommeae (partly.) 



Perithecia glabrous or hairy, fimicolous. Sordarieue. 



(6) Perithecia not hairy. ^ 

 •^ Perithecia thin-membranaceous, with a subulate 



ostiolum, - - ■ • , CeratOsiomeae. 



Perithecia woody or corky. , - Melanommeae (partly.) 



Perithecia subcarbonaceous, ostiolum compressed. Lophiostomeac. 

 Perithecia subcarbonaceous, ostiolum not 



compressed. - - Amphisphaeriede. 



Perithecia carbonaceous, ostiolum soon deciduous • 



and perithecia then broadly perforated 



above. - - • Trematosphaerieae. 



, »» Perithecia buried or only subemergent. 

 Perithecia small, simply perlorated above. Sphaerelleae. 



Perithecia membranaceous or coracoo-membranaceous, 

 ostiolum subulate. - - . Gnomonieae- 



Perithecia membranaceous, or coracio-membranaceous, 



ostiolum conical or papiUiform. • Pleosporeae.> 



Perithecia coriaceous, thick walled. ■ ^ Mossarieae. 



Perithecia covered witii a stromatic shield. Clypeosphaerieae. 



