242 



black, rough, |-J mm. diam., collapsing above when dry. Asci cyl- 

 indrical, 114x11 //, 8-spored, paraphysate. Sporidia uniseriate r 

 elliptical, constricted in the middle, 3-septate, straw color at first, be- 

 coming muriform and brown, 22-28 x 9-13 /i. 



On decorticated sage brush {Artemisia), Utah. 



C. Ribis, Niessl. Beitrag. p. 48, tab. V. fig. 34. 



Exsicc. EH. & Evrht. N. A. F. 2d Ser. 2370. 



Perithecia rather large, gregarious or crowded, subglobose. pa- 

 pillate, at length depressed, umbilicate, perforated, shining, 400 fi diam. 

 Asci ample, oblong-clavate, short-stipitate, rounded above, paraphysate, 

 100-116 x 14-17 /i. Sporidia obliquely uniseriate or irregularly bi- 

 seriate, obovate, constricted in the middle, 3-7-septate and muriform. 

 dark olivaceous, 18-20 x 7-8 pt. 



On decorticated stems of Ribes, sp. Helena, Montana (Kelsey). 



C. longitudinalis, Pk. 33rd Rep. p. 34, pi. 2, figs. 23-26. 



Perithecia 500-750 p. diam., globose, arranged in short lines, 

 erumpent through cracks in the bark, black, pierced at the apex. Asci 

 cylindrical, 8-spored, paraphysate, 110-120x12 /i. Sporidia mostly 

 uniseriate, oblong, 4-5-septate, with one or two longitudinal septa, 

 brown, 20-32 x 10-1 2J //. 



On dead stems of Andromeda ligastrina. Center, N. Y., and 

 Newfield, N. J. 



C. Comptoniae, C. & E. Grev. VI, p. 12. 



Exsicc. EH. N. A. F. 95. 



Perithecia cespitose or scattered, often transversely erumpent 

 through cracks in the epidermis, but also in small (11 J mm.) tufts 

 closely surrounded by the epidermis or, when on the bare wood, scat- 

 tered, ovate-globose, black, papillate, about \ mm. diam. Asci cylin- 

 drical, 100-112x12 /i, paraphysate, 8-spored. Sporidia uniseriate, 

 oblong-elliptical, yellow-brown, 3-septate and slightly constricted in 

 the middle, becoming 5- or more-septate and muriform, 18-23x10 /1. 



On Comptonia asplenifolia, Newfield, N. J. 



Asci longer and narrower and sporidia smaller than in C con- 

 gesta. 



C. congesta, . & E. Grev. VI, p. 12. 



Perithecia erumpent-superficial, crowded, ovate-globose, about 

 J mm. diam., rough, black, with a distinct papilliform ostiolum. Asci 



