250 The North American Cup-Fungi 



cup-shaped with the mouth constricted, reaching a diameter of 

 1 mm., externally densely clothed with grayish hairs which may 

 change to yellowish, or brownish with age, the hairs often tipped 

 with masses of minute, rod-like bodies which give them a crys- 

 taline appearance; hymenium concave, cream-colored, or yellow- 

 ish; hairs gradually attenuated, semiacute, septate, pale-yellow 

 below, hyaline toward the tip, reaching a length of 100-150 fj. 

 and a diameter of 3-4 ju at the base; asci clavate, reaching a 

 length of 100 M and a diameter of 10 m, tapering below; spores 

 obliquely 2-seriate, fusoid, slightly curved, about 4 X 15-20 /x 

 or rarely as long as 30 n, often with a row of oil-drops, giving the 

 spore a pseudoseptate appearance, or often 1 -septate; paraphyses 

 protruding far beyond the asci, cylindric below, semiacute at 

 their apices, 2-3 n in diameter. 



On bark of various deciduous trees. 



Type locality: Europe. 



Distribution: New York to Winnipeg, Washington and 

 Colorado; also in Europe. 



Illustrations: Bond. Ic. Myc. pi. 517; E. & P. Nat. Pfl. 

 V: 202, f. 159 H, 



ExsiCCATi : Clements, Crypt. Form. Colo. 86. 



11. Lachnella bicolor (Bull.) Phill. Brit. Discom. 249. 1887. 

 (Plate 123, fig. 2.) 



Peziza bicolor Bull. Hist. Champ. Fr. 243. 1791. 

 Dasyscypha bicolor Fuckel, Symb. Myc. 305. 1869. 

 Lachnum bicolor Karst. Myc. Fenn. 1: 172. 1871. 

 Lachnea bicolor Gill. Champ. Fr. Discom. 70. 1880. 

 Erinella bicolor Quel. Ench. Fung. 303. 1886. 



Apothecia closely gregarious, or scattered, sessile, or short- 

 stipitate, at first closed, becoming expanded, externally clothed 

 with a dense covering of white hairs, reaching a diameter of 1-2 

 mm.; hymenium nearly plane, orange-yellow; hairs hyaline, 

 cylindric, septate, externally roughened with granules, reaching 

 a length of 200 /x, and a diameter of 4 m; often with crystaline 

 caps, asci cylindric-clavate, reaching a length of 40-50 m and a 

 diameter of 5-6 m; spores fusiform, straight, or slightly curved, 

 1.5-2 X 6-12 /i; paraphyses lanceolate, very sharp j^ointed. 



On small twigs of various trees and shrubs. 



Type locality: Europe. 



Distribution: New York to Washington and Alaska to 

 Mexico; also in Europe. Probably widely distributed. 



