144 PROCEEDINGS OF THE ACADEMY OF [1893. 



Valsaria staphylina E. & E. 



On dead limbs of Staj)hylea trifolia, London, Canada. May, 1892. 

 (Dearness, No. 1,848.) 



Stromata orbicular or elliptical, 2-3 mm. diam., convex-hemi- 

 spherical, buried in the inner bark which is uniformly blackened on 

 the surface but remains unaltered within, often seriately arranged. 

 Perithecia subcircinate 6-12 in a stroma, 300-350// diam., with 

 short, slender necks, the papilliform ostiola erumpent in a small, 

 black, mostly acutely-elliptical disk visible in longitudinal clefts of 

 the slightly raised epidermis. Asci cylindrical, p. sp. 80-90 x 7//., 

 paraphysate, 8-spored. Sporidia uniseriate, oblong-elliptical, obtuse, 

 dark brown, constricted, 12-15x7-8//, each cell with a single 

 nucleus. 



Of less robust growth than V. insitiva not blackening the wood, 

 and only blackening the surface of the inner bark. 



Diatrypella pulcherrima E. & E. 



On dead twigs of Salix, London, Canada. May, 1892. (Dear- 

 ness, No. 1,875.) 



Stromata minute, gregarious, cortical, raising the smooth epider- 

 mis into convex-hemispherical pustules about 1 mm. diam., and 

 crowned with a minute, white, orbicular disk which is soon obliter- 

 ated in the center by the tips of the crowded, black, smooth, minute 

 ostiola, which do not however rise quite up to the surface of the 

 disk. Perithecia 8-12, minute (i mm. or less), lying in a subcircin- 

 ate manner in the stroma. Asci (p. sp.) oblong 30-35 x 8-10//, 

 polysporous. Sporidia inordinate, allantoid, hyaline, moderately 

 curved, 8-12 x H//. 

 Uummularia lateritia E. & E. 



On bark of dead Fraxinus sambucifolia, London, Canada. March, 

 1892. (Dearness, No. 1,283.) 



Stroma carnose-carbonaceous, orbicular, discoid, 3-lcm. across, 

 and about 1 mm. thick, dark reddish-brown, bordered by the mar- 

 gin of the ruptured epidermis, seated on the surface of the inner 

 bark and circumscribed by a black line which penetrates to the 

 wood. Ostiola papilliform, becoming urabilicate, scarcely prom- 

 inent. Perithecia peripherical, ovate ? mm., or a little more high, 

 and about $ mm. broad, forming a closely compacted stratum. 

 Asci clavate, paraphysate, long-stipitate, 100-120 x 8//, p. sp. 55- 

 430 x 8//. Sporidia obliquely uniseriate, navicular, 10-12 x 4-5//, 



