74 



SPHAERIALES 



y. Perithecia not sclerotioid, often colla- 

 bent; paraphyses lacking 

 (2) Perithecia glabrous 



(a) Spores with mucous sheath or appen- 



dages 

 X. Spores with mucous sheath 

 y. Spores with hyaline beak at each end 



(b) Spores without mucous sheath or ap- 



pendages 

 X. Paraphyses present 

 (x) Perithecia membranous, often colla- 



bent 

 m. Spores compressed, flattened 

 n. Spores not flattened; asci 2-8-spored 

 (y) Perithecia coriaceous, not collabent 

 y. Paraphysoids present; perithecia sclero- 

 tioid 

 z. Paraphyses and paraphysoids lacking 

 (x) Perithecia lichenicole 

 (y) Perithecia not lichenicole 

 2. Perithecia superficial from the first 



a. Perithecia hairy 



b. Perithecia glabrous 



(1) Perithecia corrugate-warted 



(2) Perithecia not corrugate-warted 



B. Perithecia cespitose, usually on a crustose or 



felted stroma 



C. Perithecia with a subicle or stroma 



1. Perithecia on a subicle, glabrous 



2. Perithecia in a stroma 



a. Spores with a mucous sheath 



b. Spores without a mucous sheath 



(1) Paraphyses present 



(a) Stroma valsoid 



(b) Stroma diatrypoid 



(2) Paraphysoids present 



Chaetoplea 2:279 



Pleomassaria 2:239 

 Delacourea 2:288 



Clathrospora 9:894 

 Pleospora 2:241; 14 

 Karstenula 2:240 



Scleroplea 2:277 



Merismatium 16:553 

 Leptosphaerulina 17:746 



Pleosphaeria 2:304 



Crotonocarpia 2:305 

 Tichospora 2:290; 14 



Cucurbitaria 2:307; 14 



Naetrocymbe 22:66 



Montagnula 14:603 



Fenestella 2:325; 14 

 Thyridium 2:323 

 Curreya 2:651 



Scolecosporae 

 2:237, 9:923, 11:351, 14:613, 16:557, 17:767, 22:289, 306, 404, 24:774, 1058, 1077 



Spores acicular to filiform, the ratio of length to width 20:1 or more, continuous 

 or septate, hyaline or subhyaline, rarely dark. 



Hyaloscoleciae 



Spores hyaline to subhyaline 



A. Perithecia separate, rarely cespitose 

 1. Perithecia innate, or finally erumpent 

 a. Perithecia beaked 



(1) Perithecia with a clypeus; beak often 



lateral; paraphyses lacking 



(2) Perithecia without a clypeus; paraphyses 



present 

 (a) Perithecia erect; beak straight, not dis- 

 coid at tip 



Linospora 2:354; 15 



Ophioceras 2:358, 11:353 



