1890.] NATURAL SCIENCES OF PHILADELPHIA. 249 1 



Plowrightia symphoricarpi. I 

 On dead branches of Symjyhoricarpus occidentalis, Sand Coulee, I 

 Cascade Co., Montana, Dec, 1888. Anderson, No. 210. Stroma . \ 

 convex, penetrating to the wood but not limited by any black circum- 

 scribing line, brownish-black, whitish within, 1 •)-2 mm. diam. Peri- , 

 thecia 10-15 in a stroma, J mm. diam. the upper part mostly prom- , 

 inent and free. Sometimes the stroma is wanting, the perithecia being ' 

 then simply cespitose or subsolitary. Ostiola obtusely conic, nearl)'^ J 

 smooth or indistinctly radiate-sulcate. Asci clavate-cylindrical, \ 

 subsessile, 75-80 x 12 //.. with paraphyses. Sporidia uniseriate or ! 

 subbiseriate above, ovate-elliptical, 1-septate and constricted, hyaline j 

 and granular at first, becoming yellow-brown, 15-18 x 8-10 //.. j 



Curreya shepherdiae. 



On dead limbs of Shej)herdla argentea, Valley of the Teton, 



Northern Montana, July, '89. Anderson, 539. Perithecia 4-6 '< 



together in a loose imperfect brown stroma, ovate, white inside, their : 

 short, obtuse ostiola, rupturing and slightly raising the epidermis 

 and forming little black pustules scattered irregularly over the 



branch. Asci clavate-cylindrical, 100-110 x 15 //. with obscure I 



paraphyses. Sporidia 1-seriate, obovate 3-5-septate and muriform, i 



slightly constricted in the middle, yellow, 18-22 x 10-12 //. \ 



