354 The North /American Cup-Fungi 



2. Dermea moUiuscula (Schw.) Cash, Mycologia 29: 304. 1937. 



(Plate 148.) 



Cenangium molliusctdum Schw. Trans. Am. Phil. Soc. II. 4: 239. 1832. 

 Celatinosporium fulvum Peck, Ann. Rep. N. Y. State Mus. 38: 97. 1885. 



Conidial stage, erumpent, circular, or transversely elongated, 

 1-4 mm. in diameter, .5-1 mm. high, blackish, waxy, usually 

 containing several lobed, or flask-shaped cavities; conidiophores 

 hyaline, simple, or branched, 1.5-2 X 15-30 /x; conidia hyaHne, 

 or pale-yellowish, subfiliform, ends pointed, sickle-shaped, or 

 almost straight, simple, 1-1.5 X 7-12 ^x. 



Apothecia accompanying the conidial stage, erumpent, 

 single, or cespitose in clusters of two to six, often crowded and 

 sometimes fused, sessile, or substipitate, 1-3 mm. in diameter 

 and 1-2 mm. high, tawny to almost black, leathery to horny; 

 hymenium at first concave, becoming sti^ongly convex, olivaceous- 

 brown to black; asci cylindric-clavate, attenuated below, 8- 

 spored, reaching a length of 100-150 )U and a diameter of 12-15 )u; 

 spores narrow-ellipsoid to subfusiform, hyaline, becoming yel- 

 lowish, straight, or slightly curved, 1-seriate, or irregularly 2- 

 seriate, often becoming 1-3-septate, 4-7 X 15-22 ju; paraphyses 

 filiform, simple, or branched, 1.5-2 ju in diameter, the tips 

 swollen and embedded in a yellowish matrix forming a dark 

 epithecium. 



On branches of species of Betula. 



Type locality: Mauch Chunk, Pennsylvania. 



Distribution: New Hampshire to Pennsylvania and Canada. 



Illustrations: Mycologia 25: pi. 21 (as Dermea' Betula e); 

 32: 742,/. 2, 12, 13; 38: 379,/. /i; 386,/. 39; 395,/. 47. 



3. Dermea balsamea (Peck) Seaver; Dodge, Mycologia 24: 427. 



1932. (Plate 149.) 



Cenangium balsameum Peck, Ann. Rep. N. Y. State Mus. 38: 101. 1885. 

 Cenangium balsameum var. ahietinum Peck, Ann. Rep. N. Y. State Mus. 43: 



40. 1889. 

 Celatinosporium ahietinum Peck, Ann. Rep. N. Y. State Mus. 25: 84. 1873. 

 Micropera erumpens Ellis & Ev. Proc. Acad. Sci. Phila. 1894: 386. 1894. 

 Micropera abietina Hohn. Mitt. Bot. Inst. Wien 3: 32. 1926. 



Conidial stage erumpent to subimmersed, rounded to cylin- 

 dric, or subconic, .5-1 mm. in diameter, .2-.5 mm. high, yellowish, 

 or olivaceous to black, waxy, opening with one or more irregular 

 cavities; conidiophores hyaline, simple, or branched, tapering 



