148 PROCEEDINGS OF THE ACADEMY OF [1893. 



straight or slightly curved, 4-5 x H-l?//. More or less contracted 

 with the margin incurved when dry. 



Dermatea fusispora E. & E. 



On dead birch limbs, Orono, Maine. (F. L. Harvey.) 

 Ascomata gregarious, obconical, erumpent-superficial, about 1 

 mm. diam., subolivaceous outside, the subundulate margin and dull 

 reddish disk white-pruinose ; texture loose and soft. Asci narrow- 

 clavate, paraphysate, 70-75 x 6//. Sporidia biseriate, fusoid, hyaline, 

 continuous, 15-20 x 2/j., slightly curved, continuous. Recognized 

 by its reddish disk and fusoid sporidia. 



Dermatea chionanthi E. & E. 



On dead limbs of Chionanthus virginica, Wilmington, Del. May, 

 1890. (Commons, 1,449.) 



Sessile, solitary or oftener cespitose in compact fascicles of 2-4, 

 dark chestnut-color, obconic, with a narrow margin, 1-1 mm. diam., 

 disk when dry often subrugose, substance firm and dry. Asci 100- 

 11 x 18-20//-. Sporidia biseriate, oblong, continuous, obtuse, slightly 

 curved, granular, hyaline or nearly so, 18-22 x 7-8//. 



Dermatella montanensis E. & E. 



On small, dead limbs, among driftwood, Sheridan, Montana. 

 May, 1892. (Mr. and Mrs. H. M. Fitch.) 



Erumpent-superficial, orbicular, discoid immarginate, 1-1 mm. 

 diam., livid and subgelatinous when fresh, concave and black with a 

 thin erect margin when dry. Asci oblong-obovate, short-stipitate, 

 p. sp. 72-80 x 18-22/;., 8-spored. Paraphyses stout, (2-2£/* thick), 

 branched and septate, united above in a dark brown epithecium. 

 Sporidia crowded-biseriate, oblong or clavate-oblong, obtuse, 3-septate 

 slightly constricted at the septa, hyaline, becoming yellow-brown, 

 20-24 x 7-8//. 



Dermatella caryigena E. & E. 



On dead limbs of Carya, West Chester, Pa. July, 1889. 



Cespitose in clusters of 4-8, nearly black, disk slightly convex 

 when fresh, I— f mm. across with a narrow margin. Asci clavate- 

 cylindrical, 75-80 x 10//, with abundant subolivaceous paraphyses 

 slightly thickened above. Sporidia obovate-oblong, subinequilateral, 

 3-septate, greenish-yellow, 12-14 x 42-6//. The clusters of peri- 

 thecia which are 1-2 mm. across are erumpent through the epider- 

 mis but are attached to it and readily peel off with it. 



