MiTRL'LA 11 



clavate, apex much narrowed, acute, very slightly blue with 

 iodine, long-stipitate, reaching a length of 60-150 m and a diam- 

 eter of 6-8 M, 8-spored; spores 2-seriate, hyaline, continuous, 

 smooth, contents granular, cylindric to clavate-cylindric, 2.5- 

 3 X 10-18 m; paraphyses filiform, usually branched, septate, 

 scarcely thickened above. 



On decaying vegetation, often on or among Sphagnum, in 

 wet places, pools and ditches. 



Type locality: Europe. 



Distribution: Ontario to Alabama and west to British 

 Columbia. 



Illustrations: Bull. Herb. Fr. pi. 463, f. 3; Grev. Scot. 

 Crypt. Fl. pi. 312; Phill. Brit. Discom. pi. 2, f. 6; Gill. Champ. 

 Fr. Discom. pi. 28, f. 1; Cooke, Mycographia, pi. 45, f. 175; pi. 

 46, f. 182; Ann. Bot. 11: pi. 13, f. 69; Rab. Krypt.-Fl. 1'^: 1143, 

 /. 1-4; Ann. Myc. 6: pi. 17, f. 185. 



ExsiccATi: Rav. Fungi Car. 5: 36; Ellis, N. Am. Fungi 433; 

 Wilson & Seaver, Ascom. 38. 



4. Mitrula cucullata (Batsch) Fries, Epicr. Myc. 584. 1838. 



Elvela cucullata Batsch, Elench. Fung. Cont. 1: 189. 1786. 

 Mitrula Heyderi Pers. Neues Mag. Bot. 1: 116. 1794. 

 Leotia Mitrula Pers. Syn. Fung. 611. 1801. 



Ascophores small, solitary, or gregarious, very slender, 1-2.5 

 cm. high; ascigerous portion ellipsoid, ovate, or obovate, rounded 

 above, distinct from the stem below and free from it for a slight 

 distance, scarcely compressed, 1-3 mm. long, .5-2 mm. thick, 

 cream-colored to yellowish-ochraceous; stem terete, equal, or 

 tapering slightly upward, yellowish-brown above, darker below, 

 granular-pruinose, the lower end frequently enveloped in and 

 attached by a yellowish-brown tomentum, .5-. 75 mm. thick 

 (all parts become slightly darker in drying) ; asci clavate, apex 

 narrowed, the pore blue with iodine, reaching a length of 45- 

 70 yi and a diameter of 6 /x, 8-spored; spores obliquely 1 -seriate, 

 or 2-seriate, hyaline, continuous, smooth, narrowly fusiform, 

 straight, or curved, 2-3 X 13-16 ^t; paraphyses rather stout, 

 gradually thickened upwards, septate, brownish, 3-4 ix thick. 



On fallen leaves of conifers. 



Type locality: Europe. 



Distribution: Northeastern United States to Idaho; also in 

 Europe. 



