SPH^ROXEXEI. 



415 



At length fissnred. 



Spores more or less globose . 

 Perithecia more or less incorporated. 



Spores oblong or thread-shaped 

 Perithecia compound, or irregular. 



Spores curved 



5.— Spores oozing out in a globule. 

 Perithecia variable. 



Spores minute 



C. — Spores not oozing out in globules or tendrils, 

 Perithecia carbonaceous. 



With a papillate ostiolum. 



Spores minute 

 Perforated. 



Spores simple 

 Spores uni.~eptate . 

 Spores multiseptate 

 Spores fasciculate, fusiform . 

 Fissured. 



Spores simple, obovate . 

 Cup-shaped, dimidiate . 

 Cylindrical. 



Spores long, flexuous 

 Perithecia bristly. 

 ]^outh!ess, thin. 



Spores vermiculate 

 Excipuliform. 



Spores attenuated . 

 Spores aristate 

 Spores concatenate 

 Perithecia membranaceous. 

 Not flattened. 



Bursting irregularly. 



Spores simple 

 Bursting longitudinally. 



Spores uniseptate on branched sporo- 

 phores .... 

 Opening with a pore. 



Spores simple .... 

 Spores filiform appendiculate. 

 Always covered. 

 Spores fusiform 

 Spores crested 

 More or less flattened. 

 Breaking oS" at the base. 

 Spores simple, minute . 

 Spores cylindrical, oblong 

 Spores septate, aristate 

 Opening irregularly. 



Spores curved 

 Gaping and innate. 



Spores simple, linear , 

 Irregular and wrinkled. 

 Spores rninute 

 Spores large, obovate . 

 More or less radiating. 

 Spores simple, fusiform 



Cheilana. 



Septoria. 



Cytispora, 



Sphceronema. 



Aposphceria. 



Sphmropsis. 

 Diplodia. 

 Heiidersoaia. 

 Prosthemium. 



Clmtenv.m. 

 Rahenhorstia. 



Acrospermum, 



Vermicidairia. 



Excipula. 



D ineraasporium. 



Myxormia. 



Coniolhyrium. 



Cystotricha. 



PTioraa. 

 I)llop}iOsjpoTa. 



Cryptosporiu ra . 

 jVeottiospora, 



Leptostroma. 



Leptothyrium. 



Discosia. 



Pilidium. 



Micropera. 



Melasraia. 

 Piggotia. 



Actiiwthyrium. 



