8 Cincinnati Society of Natural Histoty. 



** Stipe 7vaiitiiig. 



IV. Apus. Pileus sessile. 



c. Pileus fleshy, 9-1 1. 



d. Pileus coriaceous, 12-14. 



V. Resupinati. Pileus none. 



e. Subiculum thick, fleshy, 15. 



f. Subiculum waxy, 16, 17. 



g. Subiculum membranaceous, 18-24. 

 h. Subiculum crustaceous, 25-30. 



I. M Esopus. Pileus entire, simple, the stipe central. 



All the species are terrestrial and grow chiefly in pine woods ; 

 this will account for their scarcity in the Miami Valley which is 

 notable for the absence of evergreen woods. 



a. Pileus fleshy. 



1. H. infundii^jULUM, Sow. Pileus fleshy-fibrous, tough, in- 

 fundibuliform, unequal, even, brown. Stipe unequal, pallid, with 

 a tapering base. Aculei decurrent, white, then bay. 



In woods, rare. Pileus 4-6 inches in diameter, the stipe 2-3 

 inches in length and an inch thick. 



2. II. REPANJiUM, Linn. Pileus fleshy, fragile, more or less 

 repand, nearly glabrous, pallid. Stipe deformed, pallid. Aculei 

 unequal, concolorous. 



In rich woods, common Pileus 3-5 inches broad, stipe 3-4 

 inches long The pileus is sometimes floccose-pruinose ; the color 

 varies from whitish to yellowish or a fleshy tinge, but it is un- 

 changeable. 



8. H. DIFFRACTUM, Berk. Pileus fleshy-tough, thick, glab- 

 rous, alutaceous. Stipe obese, alutaceous. Aculei equal, pale 

 alutaceous. 



In dry woods, rare. Pileus about 3 inches broad, the stipe 2 

 inches in height. The pileus and stipe are of a tough, fleshy sub- 

 stances, and at length becomes much cracked and split. A re- 

 markably rigid species when dry. 



b. Pileus coriaceous. 

 4. H. ZONATUM, Batsch. Ferruginous. Pileus equally cori- 

 aceous, thin, expanded, more or less infundibuliform, zonate, be- 

 coming glabrous, radiate-rugose ; the margin paler and sterile un- 

 derneath. Stipe slender, nearly equal, floccose, with a tuberous 

 base. Aculei slender, pale, then ferruginous. 



