567 



Acer rubrum, Newlield, N. J. D. discostoma. in Raw V. Am., is 



labeled "on Carpinus" but it is apparently on Ostrya. 



Specc. of Sphceria subaffixa, Schw., in Herb. Schw., cannot be 

 distinguished from tliis. 



D. consobrlna, Mont. S} 11. Crypt. No. 747. 



Exsicc. Ell. & Evrht. N. A. F. 2d Ser. 2125. 



Perithecia small, crowded in a narrow, linear, In-own stroma, often 

 continuous for 2 or more centimeters, and raising the epidermis into 

 parallel ridges split along the top, and revealing the brown stroma 

 roughened'by the numerous, papilliform ostiola, which are finally per- 

 forated and subumbilicate. Asci clavate, stipitate, p. sp. 20-2") x 5 //. 

 Sporidia subbiseriate, allantoid, yellowish-hyaline, slightly curved, 5-6 

 x 1J-1J fi. 



On dead culms of Arundinaria, Louisiana (Langlois). 



D. tiimida, E. & E. (in Herb.) 



Diatrype Daldiniana, De Not. in Ell. & Evrht. N. A. F. 2d Ser. 2525. 



Stromata pulvinate, orbicular or oblong, 3-4 mm. diam., sub- 

 seriate and subconfluent for 1-2 cm., broad convex-tuberculiform. 

 nearly black outside, whitish within, buried below in the bark and 

 circumscribed with a distinct black line. Asci sublanceolate, p. sp. 

 40-55x6-7 tt, with a long, slender stipe. Sporidia subbiseriate, 

 allantoid, yellowish, slightly curved, obtuse, 10-12 x 2$-3 ft. Ostiola 

 prominent but not elongated, deeply quadrisulcate-cleft. Perithecia 

 with thick, black, coriaceous walls. 



On dead bark of elm, London, Canada (Dearness). 



This seems to differ from D. Daldiniana in its silicate ostiola 

 and somewhat smaller sporidia. The stroma also is larger and more 

 prominent than in the specimen of that species in Etoumeguerc's V. 

 Gallic!, No.. 1078. 



D. Hullensis, E. & E. (in Herb.) 



Stromata subsuperficial, oblong or elliptical, 4-5 mm. in the 



longer diameter, pulvinate, often confluent for 2-3 cm. or more, car- 

 bonaceous and black outside, softer and greenish-yellow within. Per- 

 ithecia buried in the stroma, ovate globose, \ mm. diam., thin-walled, 

 contracted above into slender necks, with their large, hemispherical, 

 4-5-sulcate-cleft ostiola roughening the surface of the stroma, 

 (p. sp.) clavate, 35-40 x 5-6 //, with a slender stipe. 8-spored, aparaph- 

 vsate, Sporidia biseriate above, allantoid, yellowish-hyaline, slightly 

 curved, obtuse, 8-1 1 x 2-2 J ji. 



