(38 Twenty-third Report on the State Cabinet. 



The genus Agaiicus is a large one, and is divided, by the color 

 of the spores, into iive series, which are again divided into sub 

 genera, distinguished by characters of minor importance. 



Series 1 — Leucospori. 

 Spores white, rarely wMtisli or yellowish. 



Subgenus — Amanita. 



Veil universal, distinct from the cuticle of the pileus. 

 Hymenophorum distinct from the stem.— 5er7i. Outl. 



Terrestrial species of moderate or large size, at first entirely 

 enveloped in the volva, which is burst by the growing plant, a 

 part being carried up by the pileus and forming evanescent 

 patches or scattered, persistent, wart-like elevations upon its 

 surface ; the other part evanescent, or persistent, and attached 

 to the base of the stem. The pileus at length becomes nearly 

 horizontally expanded or slightly depressed, with the margin 

 even or sulcate-striate. The stem is generally rather long, firm, 

 fleshy and stuffed. The spores are subglobose. Most of the 

 species are deemed poisonous. 



Synopsis of the Species. 



Stem annulate a. 



a. Margin of the pileus striate b. 



b. Volva loose, sheathing at the base, lamellae yellow 1. 



b. Volva connate, ruptured at the base into concentric scales 2. 



a. Margin of the pileus even c. 



c. Volva appressed at the base 3. 



c. Volva loose, forming a margin to the bulb 4. 



Stem with no annulus d. 



d. Pileus smooth, volva sheathing 5. 



d. Pileus warty, volva evanescent 6. 



d. Pileus pulverulent, volva evanescent 7. 



1. AGARICUS CiESAKIUS Scop. 



Pileus hemispherical, then expanded, striate on the mar- 

 gin, naked, yellow ; flesh yellow under the cuticle ; lamellae 

 free, yellow ; stipe slightly tapering upward, annulate, 

 sheathed at the base by the volva, stuffed. Utica. A. 8. 

 Johnson, (v. s.) 



This is one of the few edible species of this subgenus. 



2. Agaric us muscarius L. 



Pileus at first slightly viscid, hemispherical, then convex, 

 expanded or even slightly depressed, substriate on the mar- 

 gin, warty, rarely naked, red, yellow, or nearly white ; flesh 

 yellow under the sepai'able cuticle ; lamell.T' free, white ; 

 stipe cylindrical or slightly tapering upward, annulate, 



