11 



Stroma superficial, effused, peritliccia immersed with 

 elongated necks. 



SUBORDER HYSTERIACEAE. 



Bolinia. 



A. Suoridia hyaline. 



* Sporidia contmuous. 



Perithecia gubcarbonaceous, flattened or convex, 



Schizothyrivm. 



Aylographum. 



Glonium. 

 Actidium. 

 Angelina. 



Gloniella. 

 Dic]\ac,na. 



[Oloniopnix.) 



Hypoderwa. 



minute. 

 ** Sporidia uniseptate. 

 Peritiiecia membranaceous, minute, simple or 



branched, flattened. 

 Perithecia carbonaceous, simple or obscurely 



branched. 

 Perithecia stellate. 

 Perithecia subcarnose. 

 *** Sporidia 3-pbiriseptate. 

 Perithecia carbonaceous. 

 Perithecia subcoriaceons. 

 **** Sporidia muriform. 

 Perithecia carbonaceous. 

 ***** Sporidia filiform. 



(o) Sporidia much shorter than the ascus. 

 Perithecia membranaceous, flattened. 



(S) Sporidia nearly as long as the ascns. 

 Perithecia elongated, flattened, membranaceous. Lophodermium. 

 Perithecia elongated, conchiform, subcarbonaccous. Lophium. 

 Perithecia elongated, coriaceo-subcarnosc. CUthris. 



Perithecia subsphaeroid. • Osfmpa. 



Sporidia brown. , 



* Sporidia uniseptate. 



Perithecia coriaceous, widely dehiscent. 



Perithecia elongated, coriaceous. 



** Sporidia 3-pluriseptate. 



Perithecia carbonaceous. 



Perithecia coriaceous. 



Perithecia conchiform. 



Perithecia subcarbonaccous, striate. 



*** Sporidia muriform, 



Perithecia carbonaceous. 



Tryblidium. 

 (Lembosia.) 



TTyatcrium. 



{TryUidiolla.) 



Mytilidion. 



Ostrcinn. 



Hysterographiiim . 



