128 The North American Cup-Fungi 



reaching a diameter of 6 mm.; hymenium fawn-colored, plane, or 

 concave; stem reaching a length of 10 mm. and usually .5-8 mm. 

 thick, sometimes hairy toward the base when young; asci clavate, 

 reaching a length of 75-130 ju and a diameter of 7-12 n, 8-spored; 

 spores fusoid-ellipsoid, with ends attenuated, with several small 

 oil-drops, 3.5-5 X 12-20 /x; paraphyses filiform simple, or 

 branched below, slightly enlarged above, reaching a diameter of 

 4 fji, hyaline. 



On seeds of Alniis oregona. 



Type locality: Hood River, Oregon. 



Distribution : Known only from the type locality. 



Illustrations: Mycologia 29: 83,/. 1-4. 



21. Helotium strumosum Ellis «& Ev. Jour. Myc. 4: 56. 1888. 

 Pseudohelotium strumosum Sacc. Syll. Fung. 8: 300. 1889. 



Apothecia gregarious, sessile or subsessile, bright lemon- 

 yellow, closed and subspherical at first, then opening and becom- 

 ing cup-shaped and finally expanding to nearly plane, about .3 

 mm. in diameter, tomentose-pubescent outside and attached to 

 the matrix by fine, white hairs at the base; asci clavate, reaching 

 a length of 70 80 n and a diameter of 10-12 yu, 8-spored; spores 

 2-seriate, ellipsoid, with two or three oil-drops, and indications 

 of a medial septum, 3-4.5 X 10-12 /z; paraphyses stout, slightly 

 yellowish and thickened above. 



On old Dichaena strumosa on Quercus coccinea. 



Type locality: Newfield, New Jersey. 



Distribution: New Jersey and Delaware. 



22. Helotium nigrescens (Cooke) Rehm, Ascom. 307; Ber. 

 Naturh. Ver. Augsburg 26: 77. 1881. 



Peziza nigrescens Cooke, Hedwigia 14: 83. 1875. 



Apothecia stipitate, brownish-black, becoming black, at 

 first clavate, then expanded, .3 mm. in diameter; hymenium 

 pallid or subcinereous; stem thick, expanding into the apothe- 

 cium, .5 mm. long; asci cylindric, or subcylindric, reaching a 

 length of 60 ji and a diameter of 9 ^, 8-spored; spores elongate- 

 fusiform, straight, or slightly curved, 3 X \2 n\ paraphyses not 

 observed. 



On dead stems of Erigeron. 



Type locality: Newfield, New Jersey. 



Distribution: Known only from the type locality. 



