12 The North American Cup-Fungi 



Illustrations: Batsch, Elench. Fung. Cont. 1:/. ]32; Neues 

 Mag. Bot. 1: pJ. 3, f. 12; Cooke, Mycographia pi. 45, J. 176; 

 Gill. Champ. Fr. Discom. pi. 28, f. 2; Sow. Engl. Fungi pi. 84; 

 Ann. Bot. 11: p/. 12, f. 39-41; Ann. Myc. 6: pi. 5,f. 1. 



5. Mitrula gracilis Karst. Hedwigia 22: 17. 1883. 



Mitrnla gracilis var. flavipes Peck, Ann. Rep. N. Y. State Mus. 49: 32 1896. 



Ascophores solitary, slender, 1 1.5 cm. high; ascigerous 

 portion obovate-globose, rounded above, not or very slightly 

 free from the stem below, about 1 mm. diameter, orange-brown, 

 even or nearly so; stem slender, flexuous, .5-. 75 mm. thick, 

 smooth, pale brownish-yellow, nearly translucent; asci clavate, 

 apex rounded, pore blue with iodine, reaching a length of 65- 

 80 n and a diameter of 6-8 n; spores 2-seriate, hyaline, smooth, 

 oblong-fusiform to fusiform, continuous, or possibly becoming 

 1-septate, 2-3 X 10 14 n; paraphyses filiform, 1.5-2 fx thick. 



Attached to and evidently parasitic on Paludella sqtiarrosa 

 in bogs. 



Type locality.- Europe. 



Distribution: Labrador, Newfoundland, and Colorado 

 (about 10,000 feet elevation); also reported from Greenland. 



Illustrations: Ann. Myc. 6: pi. 5,f. 3-4. 



6. Mitrula muscicola P. Henn. Oefv. Sv. Vet.-Akad. Forh. 42^: 



71. 1885. 



Ascophores cespitose, erect; pileus yellowish to tan-colored, 

 obtuse, slightly Alorchella-Vikc, with a tendency to be ribbed or 

 rugose, glabrous, about 4 mm. long; stipe lighter colored to 

 whitish, glabrous, solid, about 10 mm. long; asci clavate, apex 

 narrowed, pore blue with iodine, reaching a length of 65 75 n 

 and a diameter of 6-8 n, 8-spored; spores 2-seriate, hyaline, 

 continuous, smooth, narrowly oblong-ellipsoid, 2-3 X 10-13 /x! 

 paraphyses filiform, very slightly thickened upward, hyaline, 

 2 jjL thick. 



On moss stems (Webera nutans), in moist spruce and balsam 

 woods at about 7000 feet elevation. 



Type locality: Europe. 



Distribution: Alberta; also in Europe. 



Illustrations: Oefv. Sv. Vet.-Akad. Forh. 42^: pi. 8,f. 6-8; 

 Ann. Myc. 6: pi. 5,f. 2. 



