409 



( into an acute base, rounded and obtuse above, obscurelv par- 

 ;i|iliysjiti'. 1 8-spored. Sporidia inordinate, clavate-oblong or simplv 

 oblong, slightly curved and subinequilateral. 25-~)0 x 18-22 a. 2-3- 

 mostly 2-j septate, hyaline at first, then olive-brown, ends obtuse, each 

 with a cylindrical,, hyaline, straight or curved, -.ibpersistent appendage 

 12-20 x ")-() . The pcrithecia do not penetrate so as to be visible on 

 the inner surface of the hark. 



On hark of dead Platanus, London. Canada i Dvjini'---. 



FAMILY, CLYPEOSPH.ERIEJl 



IVriilicria buri'-d. without any proper stroma, but covered by a 

 lilackened. shield-like layer, which is sometimes sharply limited, and 

 -oiiictiine- with an indefinite outline, and consists of the slightly altered 







and more or less blackened outer layer of the bark, leaf, or wood. '\\\\> 

 dark layer i> -onietirnes also found under the perithecia as w^ell as over 

 them, or even enveloping them on all sides. Asci cylindrical or clav' 

 ate-cylindrical. 8 spored. mostly paraphysate. Sporidia variable. 

 >blonr 01- filil'oi-in. hyaline or brown, continuous or 1-3-septate. 



CLYPEOSPHJ1RIA, Pckl 



Symb. p. ii /. 



Perithecia scattered, rarely confluent, covered by the epidermis, 

 submembranaceous, covered above by a thin, epidermal, stromatic 

 diield. Ostiolum erumpent, papilliform, short Asci elongated, 8-spored. 

 Sporidia uniseriate. oblong or oblong-cylindrical. friseptat<'. obtuse, 

 often curved. browiK 



Cl. sangninea, E. cV E. (in Herb.) 



Perithecia jrresrarious on red, indefinite spots, minute (TOO n\-. 



^j u * * 



buiied in the red-stained surface of the wood, the minute, erumpent 

 ostiolum barely visible. Asci clavate-cylindrical. 40-50 x 7-8 //.. par 

 ajiliysate, 8-spored. Sporidia overlapping-uniseriate, oblong-ftisoid, 

 '. <eptate and constricted at the iniddh 1 septum. 12- lo \ 3|-4^ //.. pale 

 brown, finallv dark brown, 



* 



On exposed, weather-beaten wood of decid'.iou.- trees. IVnnsyl 

 vania (Eckfeldt), Kansas (Cragin). 



The stromatic shield is very obsciu-e, s- that this miidit perha.p- 

 _LO in Leptosphceria-, , 



