34 Report of the State Botanist. 



Omphalia rugosidisca Pk. 



Rugose-disked Omphalia. 



(Report 26, p. 55.) 



Pileus thin, broadly convex or nearly plane, umbilicate obtuse 

 or slightly umbonate, sometimes slightly umbilicate, rugose on th^ 

 disk, glabrous, hygro])hauous, brown and striatulate when moist, 

 paler when dry, the thin margin often wavy ; lamellae narrow, 

 close, arcuate, decurrent, white, einitting drops of a watery juice 

 where cut or hroken ; stem short, glabrous, hollow, often curved, 

 whitish or colored like the pileus ; spores elliptical, .00025 to 

 .00028 in. long, .00016 broad. 



Pileus 6 to 12 lines broad ; stem about 1 inch long, .5 to 1 line 

 thick. 



Decaying ])rostrate trunks of coniferous trees, especially hem- 

 lock, Adirondack mountains, Otsego, Ulster, Albany and Rensse- 

 laer counties. July to September. 



The species is remarkable because of the watery juice which 



oozes in drops from the lamellae of the fresh plant where cut or 



broken, 



Omphalia lilacifolia Pk. 



LiLAO-LEAVED OmPHALIA. 

 {AgaricxLi lilacinus Rep. 24, p. 63. A. lilacifolius Rep. 29, p. 66.) 



Pileus convex, deeply umbilicate, glabrous, viscid, hygrophanous, 

 dingy-yellow with a slight greenish tinge and striatulate when 

 moist, bright sulphur-yellow when dry ; lamellae close, narrow, 

 arcuate, decurrent, pale lilac; stem equal, glabrous, hollow, 

 viscid, yellowish with a pale lilac-colored rnyceliwrn at the base / 

 spores subeUiptical, .0002 to .00025 in. long, about .000 12 broad, 



Pileus 6 to 12 lines broad ; stem 6 to 12 lines loug, .5 to 1 line 

 thick. 



Decaying prostrate trunks of hemlock. Oneida and Albany 

 counties, September. 



This is a very distinct species, remarkable for its viscid pileus 

 and stem and for the peculiar hue of the lamellae and mycelium. 



Omplialia Oculus Pk. 

 Eye-spot Omphalia, 



CReport 23, p. 84.) 



Pileus convex, umbilicate, often with a small umbo or papilla 

 in the umbiMcus, minutely squamulose, dingy-white, the umhilicus 

 hlackish-brown ; lamellae white, narrow,^ close, subarcuate ; stem 



