518 



42 X 7-8 II. Sporidia conglobate, yellowish,, allantoid, slightly curved 

 or neai-ly straight, 11-13 x 2| ii. 



Var. acerina, Pk. on liranches of Acer spicatum, Port Henry, 

 N. Y., has the asci broader (1 2-15 //). 



V. adhserens, Fckl. Symb. Nachtr. II, p. 36. 



Exsicc. Fckl. F. Rh. 2538. 



Conceptacles immersed, minute, 1-1 J mm. broad, depressed, 

 irregularly orbicular, covered by the adherent epidermis. Perithecia 

 3-5, packed in the brown stroma, minute, black. Ostiola in a small, 

 transversely-erumpent, elliptical disk, ovate, perforated, black. Asci 

 oblong, sessile, polysporous, 54 x 6-7 //. Sporidia allantoid, slightly 

 curved, hyaline, 6x1;/. 



Var. Americana, Pk., on bark of Betula populifolia, Sandlake, 

 X. Y., has 5-12 perithecia in a pustule, and the sporidia are colored 

 in the mass. 



V. cl6pinia, (Fr.) 



Valsa clopima, Fr. S. M. II, p. 401. 

 Valsella clopima, Sacc. Syll. 611. 



Stroma hemispherical, pustuliforui, depressed, almost superficial, 

 closely covered by the thin, blackened, closely adherent epidermis 

 which is barely pierced by the suborbicular disk. Perithecia 4-16 in 

 a stroma, monostichous or subcircinate, subspherical, brown. Ostiola 

 scattered,, rounded, or suboblong, black, shining or opake, with a 

 broad opening. Asci clavate-cylindrical, sessile, 40-46 x 6 /i. Spo- 

 ridia cylindrical, curved or straight, hyaline, 5-8 x 1-1 J fx. 



On shrubs, Bethlehem, Pa. (Schw.) Syn. N. Am. 1360. 



V. nigro-annulkta, Fckl. Symb. Nachtr. I, p. 29. 



Exsicc. Fekl. F. Rh. 2458. 



Stromata gregarious and more or less confluent, orliicular, | mm. 

 diam., white inside, depressed, dull gray, covered by the epidermis, 

 through which the outline of the stroma appears like a dark, slightly 

 raised ring. Perithecia about 4 in a stroma, light-colored, small (less 

 than I mm.), globose, with very short necks, and minute, punctiform, 

 Iilack ostiola erumpent in the center of the small, grayish disk, which 

 is just visible through a circular opening in the epidermis. Asci cla- 

 vate-oblong, sessile, 35-45x7-8 [i (28-35x7-8 //, Winter), 16-25- 

 spored. Sporidia conglobate, allantoid, subhyaline, slightly curved, 

 7-9 x 11-2 ;/ (9-13x2 /z. Winter), (6-7 x 1. fi, kehm). 



On dead limbs of {Salix) ? Wilmington, Del. (Commons). 



