364 The North American Cup-Fungi 



phores simple, hyaline, tapering above to a slender tip, 2X10- 

 25 fjL] conidia elongate-fusiform to subfiliform, hyaline, simple, or 

 1-septate, straight, or curved, one end often narrower than the 

 other, 4.5-6 X 18-25 n; no microconidia observed. 



Apothecia erumpent, more or less in rows, single, or in small 

 clusters, circular, or somewhat undulated, sessile, narrowed 

 below, .3-.8 mm. in diameter, .2-. 4 mm. high, dark reddish- 

 brown to black, leathery to horny, softer when moist; hymenium 

 concave to plane, or finally convex; asci cylindric-clavate, short- 

 stalked, 8-spored, reaching a length of 80-120 n and a diameter 

 of 12-15 fx] spores ellipsoid-fusiform, hyaline to yellowish, 

 straight, or slightly curved, irregularly 2-seriate, simple, or 1-3- 

 septate, 5-7.5 X 15-20 n; paraphyses filiform, hyaline, simple, 

 or branched, 1.5-2 fx in diameter, the tips slightly swollen and 

 glued together, forming a yellowish epithecium. 



On branches of Ilamamelis virginiana. 



Type locality: Clinton, Catskill Mountains. 



Distribution: New Hampshire to Pennsylvania and Canada. 



Illustrations: Mycologia 32: 737,/. /, £, F; 742, f. 6-8; 38: 

 379,/. 17, 25; 386,/. 41; 395,/. 46. 



ExsiccATi: Ellis & Ev. N. Am. Fungi 2634; Ellis & Ev. Fungi 

 Columb. 2016. 



15. Dermea Tulasnei Groves, Mycologia 38: 399. 1946. 



Cenangium Fraxini Tul. Ann. Sci. Nat. III. 20: 140. 1853. Not Peziza 



Fraxini Schw. 1822. 

 Cenangella Fraxini Sacc. Syll. Fung. 8: 590. 1889. 

 Dermea Fraxini Rehni, Ber. Bayer. Bot. Ges. 13: 196. 1912. 



Conidial bodies erumpent, rounded to short-conical, .15-. 50 

 mm. in diameter and .2-. 4 mm. high, in elongated clusters up 

 to 1 mm. in length, dark reddish-brown to black, softer than the 

 apothecia, containing one, or sometimes several, more or less 

 ovoid, simple to slightly chambered cavities which open irregu- 

 larly at the top; conidiophores cylindric, simple, or branched, 

 attenuated above, 4-5 X 25-50 /x; conidia hyaline to yellowish- 

 green, fusiform, or subfiliform, simple, or occasionally septate, 

 strongly curved to almost straight, 6-8 X 40-50 /x. 



Apothecia erumpent, single, or in small clusters, circular, or 

 slightly undulate, sessile, slightly narrowed below, .5-1 mm. in 

 diameter, .2-.6 mm. high, waxy-leathery to horny, softer when 

 moist; hymenium concave to plane, or slightly convex, dark 



