MOLLISIA 209 



Apothecia gregarious, innate, sessile, finally plane, brown, 

 becoming black when dry, .5-1 mm. in diameter; hymenium 

 livid-cinereous, asci cylindric-clavate, reaching a length of 

 50-60 M and a diameter of 6-7.5 n; spores 2-seriate, fusoid- 

 elongate, simple, slightly curved, or nearly straight, 3 X 10 16 z^; 

 paraphyses filiform, 2 /x thick. 



On living leaves and stems of species of Potentilla. 



Type locality: Europe. 



Distribution: New York to Montana and Iowa; also in 

 Europe. 



Illustrations: Alb. & Schw. Consp. Fung, pi 4, f. 6; Bull. 

 Lab. Nat. Hist. State Univ. Iowa 5: ^/. 23, f. 1. 



ExsiCCATi: Ellis & Ev. N. Am. Fungi 2039; Fungi Columb. 

 531; Barth. Fungi Columb. 2237; Kellerm. Ohio Fungi 103; 

 Seaver, N. Dak. Fungi 38; Brenckle, Fungi Dak. 5; Griff. West 

 Am. Fungi 193; Wilson & Seaver, Ascom. 15. 



22. Mollisia clavigera (Ellis & Ev.) Sacc. Syll. Fung. 8: 354. 

 1889. 



Peziza clavigera Ellis & Ev. Jour. Myc. 4: 100. \\ 



Apothecia protruding when moist, contracted and hysteriform 

 when dry, .25-.5 mm. wide and .5-1 mm. long, the margin 

 fimbriate; hymenium cinereous, or livid-white; asci cylindric- 

 clavate, narrowed below into a stem-like base; spores 2-seriate, 

 4-4.5 X 12-15 II with two or three oil-drops; paraphyses slender, 

 enlarged above to 3-4 ix. 



On leaves of Ammophila longifolia. 



Type locality: Sand Coulee, Montana. 



Distribution: Known only from the type locality. 



No specimen seen. 



23. Mollisia Angelicae Dearness, Mycologia 16: 145. 1924. 



Apothecia dark-brown, superficial, mostly hypophyllous, 

 occasionally epiphyllous, sessile, rugose-costate, urceolate, reach- 

 ing a diameter of .125 mm.; asci c\'lindric to fusoid, 8-spored, 

 reaching a length of 36 40 ^ and a diameter of 9 /x; spores 2- 

 seriate, or obliquely 1 -seriate, narrowed at one end, 2.5-3 X 9- 

 15 /x; paraphyses scant. 



On dead parts of living leaves of Angelica atropurpurea. 



Type locality: London, Canada. 



