561 



sul (hemispherical tubercle, 1-2 mm. across, and less than 1 mm. high, 

 minutely papillose above from the slightly projecting ostiola. The 

 upper, projecting part of the stroma, is of a light horn-color inside. 

 Perithecia 10-20 irregularly crowded in the bottom of the stroma. 



/ 



ovate-globose, with thick, coriaceous walls, contracted above into slen- 

 der necks 1 mm. or more long, terminating above in the papilliform 

 ostiola. Asci slender, 75-80 x 5-6 // (p. sp.). Paraphyses abundant, 

 longer than the asci. Sporidia obliquely uniseriate, oblong, crowded, 

 cylindrical, 2-nucleate, brown, uniseptate, 10-12 x 3| //. Allied to 

 V. anthostomoides, Sacc. 



On dead limbs of Salix, London, Canada (Dearness). 



V. majiiscula, Cke. & Hark. Grev. XIII, p. 17. 



Covered. Pustules scattered, scarcely prominent, composed of 

 6-10 perithecia, at length perforating the cuticle. Ostiola short and 

 obtuse. Asci ample. Sporidia elliptical, constricted in the middle, 

 ends rounded, uniseptate, brown, 50 x 25 //. 



On branches of Salix, California (Harkness). 



Sometimes the large sporidia are extruded and form blackened 

 spots around the ostiola as in Massaria, but this is not a constant 

 feature. The absence of any hyaline investment of the sporidia also 

 confirms this as a Valsariti rather than a Masxfn ia. 



V. Celtidis, (Cke.) 



Valsa Celtidis, Cke. Grev. V, p. 55. tab. 81, fig. 3. 

 Valsaria Celtidis, Sacc. Syll. 2808, Cke. Syn. 2070. 



Perithecia irregularly circinate, subimmersed. Ostiola black, 

 emergent in a brown, pruinose disk. Asci cylindrical, attenuated 

 below, 8-spored. Sporidia uniseriate. elliptical, uniseptate, brown, 

 constricted, 20 x 10 //. 



V. fulvopruinata, (Berk.) 



SphcEria fulvopruinata, Berk. Hook. Lond. Journ. Bot. IV, p. 312. 

 Valsaria fulvopruinata, Sacc. Syll. 2831, Cke. Syn. 2081. 



Forming subangular pustules about 2 mm. broad, rather effused 

 at base, as seen through the thin cuticle. Disk angular, tawny, pul- 

 verulent, pierced by the black, angular, punctiform ostiola. Stroma 

 tawny like the disk. Perithecia globose. Asci linear. Sporidia 

 elliptical, uniseptate, with a single globose nucleus in each cell, ends 

 subacute, becoming dark brown. 15-18 p. long. 



On branches of Plot anus. Ohio (Lea), Carolina (Curtis), Con- 

 necticut ( Wright). 

 71 



