1894.] NATUBAL SCIENCES OF PHILADELPHIA. 349 



Lachnella Virginica E & E. 



On decaying wood of Magnolia Fraseri, Nuttallburg, West Va., 

 Feb. 1894 (L. W. Nuttall, No. 380). 



Gregarious, sessile, 4-1^ nim. diam. Disk pallid, concave, 

 nearly closed when dry, margin fringed with brown, septate hairs, 

 100-125 X 3,'/, outside clothed with shorter, reddish- brown hairs. 

 Asci about 50 x 5,', clavate-cylindrical, short-stipitate, paraphysate, 

 8-spored. Sporidia subbiseriate, oblong, 6-8x1^-25//. 



Pseudohelotium laricinum E. & E. 



On decaying needles of Larix, in a "Tamarack Swamp," North- 

 field, Mich., June, 1893 (L. N. Johnson, No. 657). 



Ascomata sessile, thin, almost membranaceous, carnose, orange 

 colored, flat-discoid, 3-5 mm. diam., darker outside and minutely 

 pubescent, margin incurved when dry, beset with short, compound, 

 conical processes formed by the prolongation of the cellular structure 

 of the ascoma. Asci cylindrical, about 75-8//, with filiform para- 

 physes, not thickened above, 8-spored. Sporidia uniseriate, oblong- 

 elliptical, obtuse, hyaline, continuous, 8-10x4-5// (mostly about 4//). 



[n old, partly weathered specc. the color becomes a lighter orange. 



Cyathicula alpina E. & E. 



On dead stems of Pedieularis, and culms of Elymus condensatus, 

 N. W. Colo., July, 1894, alt. 9,500 ft. 



Minute, about f mm. high, stipitate, ascomata, shalloAv cup-shaped 

 when fresh, closed when dry, about =} mm. diam., disk and margin 

 pallid, structure fibrous, the extremities of the fibers prolonged and 

 subfasciculate so as to make the margin of the ascoma obscurely den- 

 tate. Stipe about } mm. high, whitish. Asci clavate-cylindrical, 

 short-stipitate, with filiform paraphyses scarcely thickened at the 

 apex. Sporidia oblong-cylindrical, hyaline, continuous, 8-10 x 1^- 

 2'. The outside of the cups is more or less farinose and becomes 

 quite dark. 



This is very near Helotium nigrescens Cke., which lacks the den- 

 tate margin, and has larger asci and sporidia, besides being much 

 darker. 



Mollisia Gaultheriae E. & E. 



On living leaves of Gaultheria Shallon, Seattle, Wash., Dec. 1893 

 (Adella M. Parker, No. 185, in part). 



