Dermea 355 



above, 2-2.5 X 15-25 fi] conidia elongate-filiform, pointed at the 

 ends, hyaline to pale greenish-yellow, becoming 1-3-septate, 

 sickle-shaped, or nearly straight, 4-5 X 50-90 n; microconidia 

 filiform, straight, or curved, 1-1.5 X 11-22 n. 



Apothecia erumpent, mostly single, sometimes cespitose, two 

 to four in a cluster, sessile, or substipitate, circular, or undulated, 

 1-2.5 mm. in diameter .4-.8 mm. high, at first yellowish, or 

 brownish, finally black, leathery to horny when dry; hymenium 

 at first concave, then plane, or slightly convex, often umbilicate, 

 light-brown to olivaceous-brown, or black; asci cylindric-clavate, 

 tapering below, 8-spored, reaching a length of 90-150 /z and a 

 diameter of 14-16 n; spores ellipsoid-fusiform, hyaline or slightly 

 yellowish, becoming 1-3-septate, straight, or curved, irregularly 

 2-seriate, 6-10 X 20-35 n; paraphyses filiform, usually much 

 branched, 1.5-2 n in diameter, the tips very slightly swollen and 

 glued together forming a yellowish epithecium. 



On branches oi Abies balsamea and Tsuga canadensis. 



Type locality: Caroga Lake, New York. 



Distribution: Maine to Virginia and Canada. 



Illustrations: Mycologia 24: 424,/. ;, pi. 10, pi. 11, e. J.; 

 38: 366, f. 8, 9; 383, f. 30; 400, f. 54. 



ExsiCCATi: Shear, N. Y. Fungi 328; Reliq. Farlow. 102. 



4. Dermea Viburni Groves, Mycologia 32: 745. 1940. 



Sphaeronema hystricinum Ellis, Bull. Torrey Club 6: 106. 1876. 

 Sphaerographium hystricinum Sacc. Syll. Fung. 3: 597. 1884. 

 Sphaerographium hystricimim var. Viburni Dearn. & House; House, Bull. N. Y. 

 State. Mus. 197: 35. 1917. 



Conidial fruiting bodies erumpent, scattered, or more or less 

 in rows, single, or two or three arising from the same basal 

 stroma, cylindric-subulate, dark-brown to black, often with a 

 reddish tinge, .3-.5 mm. in diameter at the base, and the beaks 

 about 1 mm. long, leathery to horny, basal stroma containing a 

 single more or less elongated cavity about 150-200 ti in diameter; 

 conidiophores cylindric, occasionally branched, tapering above 

 to a slender tip, 2-2.5 X 15-30 m; conidia elongate-fusiform, 

 to subfiliform, hyaline, sickle-shaped, or almost straight, one end 

 more attenuated than the other, 1-3-septate, 2.5-4 X 30-45 n\ 

 microconidia not observed. 



Apothecia erumpent, separate, or in small clusters of two to 

 six each, sessile, slightly narrowed below, circular, or slightly 

 undulated, .3-1 mm. in diameter, .2-.5 mm. high, dark-brown to 



