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 the 

 disk, glabrous, h3^grophanous, brown 'and striatulate when moist, 

 paler when dry, the thin margin often wav^^" ; lamellae narrow, 

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

 wliere cut or broken ; 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 ab(mt 1 inch long, .5 to 1 line 

 thick. 



Decaying prostrate 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. 



Lilac-leaved Omphalia. 



(.Agaricus lilacinus Rep. 24, p. 63. A. lilacifolius Rep. 29, p. 66.) 



Pileus convex, deeply umbilicate, glabrous, viscid, hygro])hanous, 

 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 mycelium at the hase / 

 spores subelliptical, .00()2 to .00025 in. long, about .00012 broad. 



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

 thick. 



Decaying prostrate trunks of liemlock. 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. 



Omphalia Oculus Pk. 



Eye-spot Omphalia. 



(Report 23, p. 84.) 



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

 in the umbilicus, minutely squamulose, dingy -white, the umbilicus 

 bla^kish-brown ; lamellae white, narrow, close, subarcuate ; stem 



