240 



Mycologia, 



few perithecia of a Thyridium with 5-6-septate, muriform asco- 

 spores, 24-26 X 6-9 evidently near T. cingulatum. 



Sphaerotheca Humuli (DC.) Burrill 

 On leaves of Heuchera parvifolia Nutt. (13803). 



Family: Sphaeriaceae 

 Allantosporae 



EUTYPELLA HERBICOLA E. & E. 



On old stems of Artemisia frigida Willd. (14745) and Atriplex 

 canescens (Pursh) Nutt. (14715). 



Eutypella Brunaudiana Ribis-aurei var. nov. 



Pseudostromata scattered or gregarious, base discoid or angular, 

 seated on the inner bark, finally erumpent and girt by the ruptured 

 epidermis, 1-4 mm. in diam., imperfectly circumscribed by a black 

 line, and when maturely erumpent presenting a roughened black 

 disc ; perithecia 4-20, globose or angular, with very thick walls 

 and a waxy, glistening, Massaria-like aspect upon section, 300- 

 500 jx in diam., black; ostiola short, obese, obtuse at the apex, 

 roughening the disc ; asci narrow, clavate, long-pedicellate, 8- 

 spored, 75 X 6.75-10 /x; spores 8, irregularly biseriate, allantoid, 

 hyaline, 10-13. 5 X 3-4^, with a nucleus in each end. 



On old branches of Ribes aureum Pursh (14736). 



Diatrype Standleyi sp. nov. 



Stromata scattered, at times coalescent, small, pulvinate or ver- 

 ruciform, 1-5 mm. in length, acute-ellipsoid or lanceolate, im- 

 mersed, then erumpent, internally, at first, of a dirty-white tint, 

 becoming rusty in spots and finally brown, externally roughened, 

 black; perithecia 1— 15, subcircinately or irregularly arranged, 

 .25-5 mm. in diam., walls thick, ostiola projecting, radiately cleft, 

 roughening the disc; asci clavate, long stipitate, 8-spored, 70- 

 125X7-8/*.; spores allantoid, biseriate above, uniseriate toward 

 the narrowing stipe, straight or curved, hyaline then yellowish, 

 10-13 X 3-3-5 A*. 



On dead branches of Ccrcocarpus montanus Raf. (13659 p.p.. 

 and 14789). 



