544 



filiform paraphyses. Sporidia uriiseriate, oblong-elliptical, about 6- 

 septate, with a single, longitudinal septum, dark brown, 20-22 x 12 ju, 

 not constricted at the septa, becoming almost opake, so that the septa 

 are hardly visible. When the bark falls away, the stroma becomes 

 superficial. 



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



F. vestita, (Fr.) 



Sphceria vestita, Fr. S. M. II, p. 410. 

 Valsa vestita, Fr. Surama Veg. Scand. p. 412. 

 Thyridium vestitum, Fckl. Symb. p. 195. 



Cucurbitaria vagans, Sacc. M. Ven. Spec. p. 122, tab. XII, figs. 34-38. 

 Fenestella vestita, Sacc. Syll. 4004. 

 Fxsicc. F. Rh. 954. Rehm Asc. 179, 684. Sacc. M. Ven. 1272. Sydow, M. March. 1249, 

 1570, 1918, 1919. Roum. F. Gall. 4775. 



Stroma suborbicular, 2-3 mm. across, depressed, sides abrupt, 

 penetrating the bark, and when this falls away, remaining attached to 

 the wood, crowned above with the large, black, tuberculiform disk 

 erumpent through the adherent epidermis, and rising but little above 

 it. Perithecia 8-15 in a stroma, irregularly crowded, \ mm. or more 

 in diameter, globose or angular, with thick walls, necks cylindrical, 

 convergent with their thick, black, perforated ostiola united in the 

 erumpent disk, but not exserted. The stroma is covered with a gran- 

 ulose-floccose, pale yellow substance that is very noticeable. Asci 

 cylindrical, 120-150x12-15 p (p. sp. 80-100 /i long), with filiform 

 paraphyses. Sporidia uniseriate, elliptical, olive-brown, 3-5-septate, 

 and muriform, scarcely constricted at the septa, 12-20 x 10-12 /j. (19- 

 25 x 10-12 //, Winter' 20-26 x 10-14 /i, Sacc). 



On dead limbs of Quercus, Ulnms, and Sambucus, Canada (Dear- 

 ness). 



F. superficialis, (P. & C.) 



Melogramma superficialis, P. & C. in 29th Rep. N. Y. State Mus. p. 57. 

 Fenestella superficialis, Sacc. Syll. 4012. 



Stroma superficial, depressed, 1-2 lines across, pale or yellowish 

 within. Perithecia unequal, more or less irregular, crowded, de- 

 pressed, blackish-brown or black. Asci very broad, varying from 

 subglobose to oblong-clavate, fugacious. Sporidia oblong, obtuse, 

 fenestrate, slightly constricted at the center and appearing uniseptate. 

 25-33 p. long. 



On bark of living Pyrus Americana, Buffalo, N. Y. (Clinton). 



F. phawspora, Sacc. F. Ven. Nov. Ser. IV, p. 13, F. Ital. tab. 140. 

 Acervuli valsoid, small (2 mm.), orbicular, flattened, seated on the 



