Lachnella 265 



Distribution: New York to Iowa; also in Europe. Prob- 

 ably widely distributed. 



Illustrations: Boud. Ic. Myc. pi. 513; Bull. Torrey Club 

 27: pi. 31, f. 12. 



ExsiccATi: Ellis & Ev. N. Am. Fungi 2631; Brenckle, Fungi 

 Dak. 664. 



Phillips (Brit. Discom. 265.) treats leucophaea as a synonym 

 of the above and states: "certainly not worthy of specific rank." 



38. Lachnella canadensis (Ellis & Dearn.) Seaver, comb. nov. 

 Psendohelotium canadense Ellis & Dearn. Proc. Canad. Inst. 14: 89. 1897. 



Apothecia scattered, short-stipitate, or subsessile, whitish, 

 with a yellowish tinge, about 1 mm. in diameter, pubescent, 

 the margin fringed with tufts of short, pale hairs and when dry 

 the opposite sides rolled together so as to become elliptical, 

 or triangular in outline; hymenium concave, yellowish; asci 

 cylindric-clavate, reaching a length of 40 m and a diameter of 

 4 n; spores 2-seriate, long-ellipsoid, 1.5-2 X 8 12 fx; paraphyses 

 filiform. 



On dead stems of Arctium Lappa. 



Type locality: London, Canada. 



Distribution: Known only from the type locality. 



39. Lachnella Ivae (Rehm) Seaver, comb. nov. 

 Dasyscypha Ivae Rehm, Ann. Myc. 11: 397. 1913. 



Apothecia gregarious, sessile, at first globose and closed, then 

 cup-shaped, finally expanded, constricted at the base, externally 

 yellow, then brownish, .5-1.3 mm. in diameter, the margin clothed 

 with straight, septate, hyaline, then yellowish hairs 4-5 X 150 /x; 

 asci cylindric-clavate, reaching a length of 70 fj. and a diameter 

 of 9 /i, 8-spored; spores ellipsoid, 2-seriate, 3 X 12-14 ;u; pa- 

 raphyses filiform, slightly enlarged above 4 n in diameter. 



On dead stems of Iva xanthifolia. 



Type locality: Kulm, N. Dakota. 



Distribution: Known only from the t>'pe locality. 



40. Lachnella pulverulenta (Lib.) Quel. Ench. Fung. 316. 1886. 



Peziza pulverulenta Lib. Pi. Crypt. Ard. 125. 1832. 

 Trichopeziza pulverulenta Fuckel, Symb. Myc. 297. 1869. 

 Peziza solfatera Cooke & Ellis, Grevillea 7: 7. 1878. 

 Lachnella solfatera Phill. Brit. Discom. 246. 1887. 

 Dasyscypha pulverulenta Sacc. Syll. Fung. 8: 462. 1889. 

 Dasyscypha solfatera Sacc. Syll. Fung. 8: 463. 1889. 



