220 Peck : New species of fungi 



Sarcoscypha dawsonensis 



Receptacle cupular, 1-2 cm. broad, crowded or cespitose, ses- 

 sile or radicated, often uneven or sulcate at the base, irregular, ex- 

 ternally pruinose or tomentulose, pallid, whitish at the base ; 

 hymenium red or orange, often rugosely wrinkled ; asci cylindric, 

 200-280 fi long ; spores monostichous, elliptic, even, 20 f± long, 

 10 fx broad, paraphyses slender, filiform, slightly thicker at the top. 



Among mosses, Leptobryum pyriforme Schimp. West Dawson, 

 Yukon Territory. July, 1905. E. B. Sterling communicated it. 



The minute tomentum of the exterior surface of the cups is 

 composed of slender colorless septate filaments. The hymenium 

 of the dried specimens is pruinose. 



Poronia macrospora 



Stroma 0.75-1.5 cm. broad, irregular, broadly ovate or de- 

 pressed-globose, stipitate, punctate by the slightly prominent 

 black or blackish ostiola, reddish-brown or blackish-brown, white 

 within ; stem irregular, flexuous, slender, simple or with one or 

 two short branches at the top, sometimes enlarged at the apex, 

 crispate tuberculate and perforate at the base, blackish-brown, 

 white within ; perithecia immersed in the stroma, black, the ostiola 

 usually surrounded by a pale band ; spores very large, elliptic, at 

 first colorless and involved in mucus, then colored, 40—60 ft long, 

 20-30 [jl broad. 



Rich sandy ground in a garden. New Haven, Connecticut, 

 December, 1905. P. W. Graff. 



This species is remarkable for the large size of the spores, 

 which character has suggested the specific name. The stem is 

 deeply set in the ground and the lower or subterranean part is 

 enlarged, twisted, irregular and uneven or crumpled. The top 

 expands into the stroma which is not disciform in our specimens. 



Leptosphaeria Lythri 



Perithecia minute, scattered, depressed, partly covered by the 

 scurfy remains of the epidermis, black, usually with a minute papil- 

 liform ostiolum ; asci oblong or clavate, 100—150// long, 20—30^ 

 broad, the base very short ; spores oblong or subfusiform, straight 

 or slightly curved, colorless becoming yellowish-brown with age 

 if viewed with transmitted light, 5-7-septate, the third cell usually 

 larger than the others, 30-40// long, 12-16// broad. 



