1890.] NATURAL SCIENCES OF PHILADELPHIA. 225 



black outside, dirty white within. Perithecia crowded in the stroma, 

 subglobose, about 5 mm. diam. with thick, black coriaceous walls. 

 Ostiola conic-hemispherical, deeply 4-5-sulcate cleft. Asci (p. sp.) 

 40-45 X 7-8 !i: with stout paraphyses and allantoid yellowish, mod- 

 erately curved 8-12 x 2\ p.. sporidia. Resembles outwardly Dia- 

 trypella quercina, var. lignicola, C. & E. Specific name from Hoch- 

 elaga, an Indian name for the St. Lawrence River. 



Diatrypella vitis. 



On dead vines of Vitis bipinnata, Bayou Chene, La., Oct., 1888. 

 Rev. A. B. Langlois, 1508. Stromata, tuberculiform-hemispherical, 

 about 1 mm. diam. erumpent-superficial, black inside. Perithecia 

 1-4 in a stroma, globose 2 mm. diam. black and shining within, con- 

 tracted above into a short neck. Ostiola scarcely prominent, quadri- 

 sulcate. Asci polysporus, 75-80 x 10-12 ,a. clavate-cylindrical, 

 rather abruptly contracted below into a stipitate base and surrounded 

 by obscure paraphyses. Sporidia allantoid, yellowish-hyaline, 6-7 

 X 1^ ;j.. not strongly curved. The surface of the wood beneath the 

 stromata as well as the inner surface of the bark is marked with a 

 black circumscribing line. 



Diatrypella demetrionis. 



On dead limbs of Salix chloropliylla in a wet mountain valley, 

 Colorado, July, 1888. Rev. C. H. Deraetrio, No. 205. Stroma 

 pulvinate, depressed-hemispheric, orbicular, slate-black, 1^-2 mm. 

 diam. penetrating to the wood which is marked with a black cir- 

 cumscribing line, closely embraced by the superficial layer of the 

 bark which forms a narrow adnate margin; inner substance whitish. 

 Ostiola only slightly prominent, distinctly but not deeply radiate- 

 cleft. Perithecia of medium size, globose or angular from mutual 

 pressure. Asci slender-clavate 75-80 p.. long (p. sp. 35 x 6 //.), 

 Sporidia crowded, pale yellowish in the mass, nearly hyaline w^hen 

 separated, minute, allantoid, slightly curved, about 4-5 x 1-1} p. 



This comes near D. exigua, Winter, which is also on Avillow limbs 

 but that species is said to have the stroma very small (" minutissimis") 

 and the sporidia 8 x H p- In the Colorado specimens we found no 

 sporidia over 5 p. long and mostly only about 4 p. The general 

 appearance is almost exactly that of Diatrype disciformis. 

 Ceratostomella mall. 



On inner surface of loose hanging bark of partly dead apple 

 trees, Newfield, N. J., Dec, 1889. Perithecia scattered, membran- 

 16 



