486 



rounded hy the whitened, torn margin of the thin epidermis, rather 

 broadly perforated. Asci clavate-cylindrical, 35-40 x 5-6 fi, subsessile. 

 Sporidia subbiseriate, allantoid, hyaline, slightly ciu'ved, 6-8xl-li //. 

 On dead limbs of Quercus and Bhododendron, Forestburg, N. Y. 

 (Peck), and on dead limbs of Laurus Sassafras, and the prostrate 

 stems of Subus Canadensis, Newfield, N. J. 



V. cincta, Fr. Summa Veg. So. p. 411. 



Exsicc. Fckl. F. Rh. 2140, 2348.— Rehm Asc, 224.— M. March, 353? 



Stromata rather widely scattered, strongly convex, or obtusely con- 

 ical, 2-3 mm. diam., formed of the slightly altered (or a little paler) 

 substance of the inner bark, enclosed in a very thin, black layer which 

 shows as a faint, black circumscribing line on a cross section. Peri- 

 thecia in a single layer, or generally arranged around a central sper- 

 mogonium, 10-15, globose, or subangular, i-ather over J mm. diam., 

 attenuated into very slender, converging necks, with the rather large, 

 black, perforated ostiola ranged around the central pore of the sper- 

 mogonium, in the convex, whitish disk, which soon becomes brown. 

 The stroma forms a distinctly prominent pustule, covered by the lon- 

 gitudinally or substellately-cleft epidermis. Asci 50-60 x 9-1 2 /z, 

 clavate, subsessile. Sporidia biseriate, allantoid, hyaline, curved, 12- 

 20 (mostly 12-16) x3|-4^. 



On dead twigs of Amelatickier alnifolia, Sand Coulee, Montana 

 (Anderson). 



The peritliecia are rather smaller than in Dr. Rehm's specimens, 

 but the habit is the same. We have not found any spermatia. 



V. praestans, B. & C. in Curtis' Cat. p. 143, and Cke. Valsei of the 

 U. S. No. 42. 



Stroma orbicular at base, 1-2 mm. diam., convex-conical, filled 

 with whitish grumous matter, enclosed in an olivaceous-brown exter- 

 nal layer of similar nature, but more compact ; on the small limbs and 

 twigs raising the epidermis into slight pustules pierced at the apex by 

 the small, round, dirty-white disk. On the larger limbs with thicker 

 bark, the pustules are less conspicuous. Perithecia 10-20 or more 

 lying in a single layer in the bottom of the stroma, small, \-\ mm. 

 diam.. globose, oblong or otherwise irregular in shape from mutual 

 pressure, rather abruptly contracted into long, very slender necks with 

 their short, rounded and papillate, then perforated and umbilicate 

 ostiola erumpcnt through the whitish disk (which is soon obliterated), 

 but scarcely exserted. Asci (p. sp.) oblong-fusoid, 30-35 x 5-6 fx. 



