SPHAERIACEAE 



75 



(b) Perithecia horizontal; beak right-angled, 

 discoid at tip 

 b. Perithecia not beaked 



(1) Perithecia with a clypeus 



(2) Perithecia without a clypeus 



(a) Perithecia hairy or setose 



(b) Perithecia glabrous 



X. Spores with mucous sheath or appen- 

 dages 

 (x) Spores with mucous sheath 

 (y) Spores with a seta at each end 

 y. Spores without sheath or appendages 

 (x) Perithecia with several ostioles; 



paraphyses lacking 

 (y) Perithecia with a single ostiole 

 m. Perithecia lichenicole 

 (m) Asci 8-spored 

 (n) Asci many-spored 

 n. Perithecia not lichenicole 

 (m) Paraphyses present 



r. Perithecia globose to conoid 

 s. Perithecia cylindric, truncate 

 (n) Paraphysoids present 

 (o) Paraphyses lacking 

 r. Perithecia algicole, astomous; 



spores just below 20:1 

 s. Perithecia graminicole, ostiolate; 

 spores typically filform 

 2. Perithecia superficial 



a. Perithecia hairy; paraphyses lacking 



b. Perithecia glabrous 



(1) Perithecia fimicole; spores long-awned at 



each end 



(2) Perithecia not fimicole; spores muticate 



(a) Perithecia globoid to conoid; ostiole 



normal 



(b) Perithecia clongatc-cylindric, ostiole sul- 



cate 

 B. Perithecia with a subicle or stroma 



1. Perithecia with a subicle 



a. Paraphyses present 



b. Paraphyses lacking 



2. Perithecia with a stroma 



a. Stroma superficial; perithecia setose 



b. Stroma immersed or erumpent 

 (1) Stroma erumpent 



(a) Paraphyses present 



(b) Paraphyses lacking 



^2) Stroma immersed, disk alone emerging 



(a) Necks of perithecia short, scarcely con- 



verging; conidia in a pycnidium 



(b) Necks of perithecia long, converging 



into a disk; conidia on a stroma 



Robergea 2:806 

 Ceuthocarpum 14:618 

 Ophiochaeta 11:352 



Ophiomassaria 11:353 

 Dilophia 2:357; 15 



Crigerosphaeria 24:1060 



Rhaphidophora 2:351 

 Neolamya 2:351 



Ophiobolus 2:337; 15 

 Cylindrina A:421, 9:937 

 Ophiocarpella 24:638, 1131 



Lulworthia 24:1059 

 Ophiosphaerella 22:290 

 Acerbiella 17:768 



Bovilla 2:360 



Leptosporella 14:619 

 Bactrosphaeria 14:617 



Bombardiella 22:292 

 Trichospermella 24:364 



Acanthotheca 



SUlia 1:361; 15 

 Naumovia 



Vialaea 14:619 



Cryptospora 2:361; 15 



