34 SPHAERIACEAE 



(y) Spores fusoid, somewhat short 



Enchnosphaeria 2: 205 



y. Perithecia submembranous, small 



Acanthostigma 2: 207 

 z. Perithecia fleshy-coriaceous, hairs fascicled on a central disk 



Actiniopsis 16: 543 

 I 2 1 Perithecia of two colors, usually reddish at vertex 



Herpotrichia 2: 211 



II. Perithecia cespitose, erumpent, superficial, membranous 



Baumiella 17: 708 



III. Perithecia in a struma or on a subicle 



1. Perithecia on a subicle; asci many-spored, paraphyses lacking 



Sydowia 11 : 341 



2. Perithecia in a stroma 



a. Stroma lichenicole, white, lanose Dichosporium 16: 542 



b. Stroma not lichenicole, black 



(1) Stroma immersed Calospora 2: 231 



(2) Stroma superficial 



(a) Stroma lentiform, adnate to the pyenidium 



Melanops 2: 231 



(b) Stroma pulvinate or hemispheric 



Holstiella 14: 593 



Phaeophragmiae 

 2: 1, 9: 759, 11: 319. 14: 561. 16: 510. 17: 718 

 Spores 2-several-septate. olive, melleous or fuliginous, oblong to cylindric 



I. Perithecia separate 



1. Perithecia covered or erumpent 



a. Spores with a mucous covering Massaria 2:2 



b. Spores without a mucous covering 



( 1 ) Perithecia depressed beneath a black cortical clypeus 



Clypeosphaeria 2: 90 

 (2) Perithecia without a stromatic clypeus 



(a) Spores muticate 



x. Paraphyses lacking Phaeospora 16: 519 



y. Paraphyses present 



(x) Cells of spore concolorous 

 m. Perithecia glabrous 



(m) Perithecia rostrate Rhynchosphaeria 16:524 



(n) Perithecia not beaked 

 r. Spores cylindric, connected in pairs in the ascus 



Leptosphaeropsis 9:770, 11:321 

 s. Spores separate Leptosphaeria 2: 13 



(incl. Cladosphaeria 11:321, Chi- 

 tonospora 9: 797) 

 n. Perithecia setose or hairy Pocosphaeria n: 325 



(y) Cells of spore discolorous Heptameria 2: 88 



(incl. Passeriniella n: 326) 



(b) Spores caudate or cuspidate 



x. Spores caudate at base Rebentischia 2: 12 



y. Spores cuspidate at both ends Ceriospora 14: 19, 2: 184 



