78 Twenty-third Report on the State Cabinet. 



June-October. 



An extremely variable and abundant species occurring 

 almost everywhere throughout the season. 



30- Agaricus beumalis Fr. 



Pileus thin, at first convex, then expanded or depressed, 

 umbilicate, smooth, hygrophanous ; lamellae narrow, close, 

 slightly decurrent ; stipe slender, smooth, equal, hollow. 



Height l'-2', breadth of the pileus 8"- 18", stipe 1"- 2" thick. 



Pine woods. West Albany. October. 



The plant is watery gray when moist, dull white when dry. 

 I do not find it deeply funnel form. 



31. Agaricus ditopus Fr. 



Pileus thin, submembranaceous, convex, rarely with a small 

 umbo, smooth, hygrophanous, brow^n when young and moist, 

 grayish-white when dry ; lam ella3 grayish, close, thin, attached, 

 not decurrent ; stipe slender, equal, smooth, hollow. 



Height l'-2', breadth of pileus 6"- 18", stipe 1"^2'' thick 



Pine woods. West Albany. October. 



The plant has the odor and taste of new meal. I have seen 

 no specimens with the pileus depressed. 



32. Agaricus metaciirous Ft. 



Separated from the preceding by its thicker, depressed pileus, 

 its thicker, less close lamella?, and the absence of odor. 

 Pine woods. West Albany. October. 



Subgenus — Collybia. 

 Stem cartilaginous externally. Margin of pileus at first invo- 

 lute. Gills not decurrent. — Berk. Outl. 

 The pileus is generally convex or expanded, not obconic or 

 depressed, as in the preceding subgenus. Tlie lamelh^ reach 

 the stem, but are not decurrent, though sometimes emarginate 

 as in Trlcholoma. The stipe is firm and cartilaginous, without 

 any annulus. 



Synopsis of the Si-ecies. 



Stipe ■with a long tapering root 33. 



Stipe with no couspicuous root, nor with tubers a. 



a. Stipe smooth, phiiit terrestrial 34. 



a. Stipt! smooth, phmt lignatile 35. 



a. Stipe not smooth, phviit lignatile b. 



b. Pihius viscid 15. 



b. Pileus not viscid 36. 



Stipe having small tubers at the base, pileus umbilicate 37. 



Stipe having small bay or brown tubers, pileus unibonate C8. 



