541 



4-8 in a stroma, closely packed, ovate or subangular from compression, 

 about J mm. diam., with whitish, waxy contents. Asci (p. sp.) 75-85 

 x20 IJL, mostly only 6-spored. Sporidia oblong-cylindrical, yellowish, 

 3- (exceptionally 5-) septate, 30-40x4-7 //, slightly constricted at the 

 septa. The young stromata contain an abundance of pycnidial spores 

 (about the size and shape of the ascospores), borne on stout or branch- 

 ing sporophores about as long as the spores themselves. 



On dead hickory limbs (Gary a) t Lyndonville, N. Y. (Fairman). 



Ps. sigmoidea, (C. & E.) 



Melancbnis sigmoidea, C. & E. Grev. VI, p. 92, pi. 100, fig. 26. 

 Pseudovalsa sigmoidea, Sacc. Syll. 3352, Cke. Syn. 2099. 



Stromata conical or conic-hemispherical. 1-2 mm. diam.. orbicular 

 or elliptical at base, outer layer thick, black, seated in the inner bark 

 and raising the epidermis into pustules. Perithecia rather deeply 

 buried in the stroma, small, \-\ mm. diam., contracted above into 

 moderately stout necks with their obtuse, subhemispherical ostiola 

 subcircinate-erumpent in' a convex, brown disk (apex of the stroma) 

 which pierces the epidermis, but does not rise much above it. Asci 

 bmad-clavate, 1 20-1 SO x 19-22 /* (p. sp. 100-110 // long), 8-spored, 

 stipitatc, obscurely paraphysate. Sporidia biseriate, oblong-fusoid. 

 slightly curved. 3-7- (mostly 5-) septate, hyaline at first, finally brown. 

 45-7 5 x 10-12 //. suUicute at first, finally subobtuse. 



On dead branches of Quercus f/'/ictortf/. Q. ilicifolia and Q. alba. 

 No \v field, X. J., on oak limbs, Canada (Dearness). 



Perithecia on the first two mentioned hosts, 3-5 in a stroma; on 

 Q. alba, 3-12. The conidial stage is a Corymum, forming black, 

 erunipent tubercles about |-1 mm. diam. Conidia clavate-fusoid, 

 3-7-septate, 50-80x10-13 //, on densely fasciculate, stout, brownish, 

 septulate basiclia 100-1 20x4-5 7*. 



Ps. Texeiisis, (E. & E.) 



Diatrype Texensis, E. & E. Journ. Mycol. II, p. 40, 

 Thyridaria Texensis, Sacc. Syll. 7058. 



Stroma pulvinate, subcarbonaceous, black, suborbicular, 2-4 mm. 

 across, at length -plane or subconcave above, seated on the surface of 

 the inner bark and bursting through the epidermis which closely sur- 

 rounds it. Perithecia coriaceous, with thick walls, globose or suit- 

 angular by pressure, 6-20 in each stroma, J-J mm. diam. Ostiola 

 subtiiberculiform or hemispherical, with a rather large, though indis- 

 tinct opening. Asci clavate-cylinclrical, about 75 x 12 ,, with abundant 

 paraphyses. Sporidia partly biseriate, yellowish-brown and uniseptate 



