PEYRITSCHIELLACEAE 43 



(2) On short opposite branchlets of the 



appendage Stichomyces T 2:301 



b. Antherids terminal 



(1) Antherid with a short spine at the tip Haplomyces T 269, 2:275; 



L 497 



(2) Antherid without a spine but with a neck- 



like canal cell 



(a) Ascogenic cells at least 36 Polyascomyces T 2:299 



(b) Ascogenic cells few 



X. Stalk of antherid a single cell 

 (x) Antheridial cells obliquely in vertical 



rows 

 m. Subbasal cell of receptacle with a 



sterile appendage Eumonoecomyces T 2:273 



n. Subbasal cell of receptacle without 

 sterile appendage 

 (m) Antherids opening by a terminal 



pore Eucantharomyces T 273, 2:275; 



L 497 

 (n) Antherids opening by a lateral 



pore Clidiomyces T 2:280 



(y) Antherid parenchyma-like, many- 

 celled 

 m. Antheridial cells with three marginal 



cells Euhaplomyces T 2:281 



n. Antheridial cells without marginal 



cells Camptomyces T 274, L 498 



(z) Antherid of several superposed cell5^ 

 bearing single simple antherids 

 directly 

 m. Simple antherids two Acallomyces T 2:300 



n. Simple antherids several Acompsomyces T 2:297 



y. Stalk of two cells placed side by side Monoecomyces T 2:268 

 2. Antherids arising on the receptacle 



a. Perithecia free 



(1) Receptacle of a single row of several to 



many superposed cells Enarthromyces T 276, 2:267; 



L 498 



(2) Receptacle of one or two superposed cells 



followed by two or three oblique or 

 transverse rows 



(a) Receptacle with one basal cell 



X. Basal cell followed by two tiers of cells Limnaeomyces T 2:261 

 y. Basal cell followed by three symmetri- 

 cal series Dichomyces T 282, 2:249, L 499 



(b) Receptacle with two superposed basal 



cells Peyritschiella T 278, 2:260; 



L 499 



b. Perithecia grown together with distal portion 



of receptacle 



(1) Base of receptacle of two superposed cells Chitonomyces T 285, 2:263; 



L 499 



(2) Base of three superposed cells Hydraeomyces T 293, L 500 



