Dermea 353 



1. Dermea Cerasi (Pers.) Fries, Syst. Orb. Vcg. 115. 1825. 

 (Plate 147, Fig. 1.) 



Peziza Cerasi Pers. Tent. Disp. Fung. 35. 1797. 



Sphaeria dubia Pers. Ic. Pict. Fung. 4: 48. 1806. 



Cenangium Cerasi Fries, Syst. Myc. 2: 179. 1822. 



?Cenangium cerasoriim Schw. Schr. Nat. Ges. Leipzig 1: 118. 1822. 



? Cenangium clavatiim Fries, Syst. Myc. 2: 179. 1822. 



Cycledum Cerasi Wallr. Fl. Crypt. Germ. 2: 512. 1833. 



Micropera roseola Lev. Ann. Sci. Nat. III. 5: 283. 1846.|m 



Micropera drupacearum Lev. Ann. Sci. Nat. III. 5: 283. 1846. 



Micropera Cerasi Sacc. Atti Soc. Veneto Sci. Nat. Padova 2-: 160. 1873. 



Tympanis Cerasi Quel. Ench. Fung. 330. 1886. 



Conidial stage erumpent, irregular in form, circular, or 

 elongated to conical, usually with several flask-shaped bodies 

 which open irregularly, reaching a height of 1 mm., whitish to 

 yellowish, soft-waxy; conidiophores simple, or branched, taper- 

 ing to a slender tip, 2-2.5 X 10-25 /x; conidia sickle-shaped, or 

 almost straight, fusiform, hyaline to faintly yellowish, simple, or 

 1 -septate, 2.5-4.5 X 35-65 yt; microconidia hyaline, filiform, 

 straight, or curved, simple, 1-1.5 X 12-23 ;u. 



Apothecia accompanying the conidial stage, single, or more 

 often cespitose, narrowed below, 1-3 mm. in diameter and 1.5 

 mm. high, at first brownish, finally black, leathery to horny; 

 hymenium at first concave, becoming plane, or convex, often 

 slightly umbilicate, black, or slightly olivaceous; asci cylindric- 

 clavate, tapering below into a stem-like base, reaching a length 

 of 100-150 n and a diameter of 10-15 n, 8-spored; spores ellipsoid- 

 fusoid, hyaline to yellowish, straight, or slightly curved, simple, 

 becoming 3-septate, 5-7 X 15-25 n; paraphyses simple, or 

 branched, the tips swollen and forming a yellowish epithecium. 



On branches of various species of Pruniis. 



Type locality: Europe. 



Distribution: Maine to Washington and South Carolina; 

 probably widely distributed throughout North America; also 

 in Europe. 



Illustrations: Pers. Ic. Pict. Fung. pi. 20, f. 1-2; Tul. 

 Fung. Carp. 3: pi. 19, f. 13-17; E. & P. Nat. Pfl. V: 237, f. 179 

 A-D; Rab. Krypt.-Fl. V: 242. /. 1-6; Mycologia 25: pi. 20, 

 (upper figure); 38: 366,/. 1, 2; 383,/. 27; 395,/. 42. 



ExsiccATi: Ellis, N. Am. Fungi 40, 989, 2812; Ellis & Ev. 

 N. Am. Fungi 2555; Shear, N, Y. Fungi 94; Barth. Fungi Columb. 

 4942; Reliq. Farlow. 113; Rav. Fungi Am. 246; Fung. Car. A:71. 



