116 FUNGI. [Agaricus, 



rarely forming a ring^ generally very fugacious ; stem jistulosCy 

 slender^ rather brittle^ distinct from the pileus. Pileus slightly 

 carnose or membranaceous, smooth, subper sis tent. Gills subdeli- 

 guescent. Sporules in general black ; ferruginous in A. vitellinus, 

 Boltonii and titubans ; quaternate in A. semiovatus. 



307. A. semiovatus, Sow. (half-ovate Agaric) ; pileus sub- 

 carnose campanulate viscid clay-white, gills adnate cinereous- 

 black, stem long whitish, ring entire. Soio. t, 131. With, v. 4. 

 p. 261. Pers, Syn. p. 408. Purt. Mid. Fl. v. 2 ^ ^. n. 968. 

 Fr. Syst. Myc. v. \. p. 300. Grev. FL Ed. p. 392.—^. nitens, 

 Bull. t. 84. — A. ciliaris, Bolt. t. 33. 



On dung, near hay-stacks, &c. More or less commonthe whole 

 year. — Pileus H inch broad, semiovate, very obtuse, at first ochraceous, 

 then dirty-white, shining, smooth, slightly viscid, wrinkled when old, 

 siibcarnose but watery. Gills subdeliquescent, broad, ventricose, adnate 

 by a small portion, clouded, cinereous, the margin white. Sporules 

 large, black, elliptic, quaternate, the major axis perpendicular to the 

 gills, with minute papillae, each of which is surmounted by a little 

 point, between the sori. Stem 5 inches or more high, 2 lines thick, at 

 first fibrillose ; beneath the ring squamuloso-pulverulent ; above dotted, 

 as is the ring, with the sporules. 



308. A. Jimiputris, Bull, {rotten-dung Agaric^ ; pileus sub- 

 carnose campanulate, when moist cinereous turning pale, gills 

 adnate cinereous-black, margin of the same colour, stem long 

 rufescent, ring torn. Bidl t. QQ. With. v. 4. p. 228. Purt. 

 V. 2 Sf 3. n. 1465. Fr. Syst. Myc. v. I. p. 300. Fl. Ban. 

 t. 1959. 



On horse-dung. May — Oct. Very common. — Pileus 1 — 2 inches 

 broad and high, at first obtuse, conic, reticulato-rugulose ; at length 

 campanulate, dark-cinereous, livid when dry ; the ring broken into 

 triangular loops or laciniae, fi-inging the margin, which is minutely 

 downy and frequently split. Gills adnate, ascending, mottled, cinereous- 

 black, subdeliquescent. Sporules elliptic, subapiculate, brown-black. 

 Stem 2 — G inches high, squamuloso-tomentose, pulverulent, often 

 beaded with little drops, striate above, nearly white at length rufescent ; 

 zoned within. 



309. A. papiliondceus, Bull. {Butterfly Agaric); pileus sub- 

 carnose campanulate dry dingy-black turning pale, gills adnate 

 cinereous-black, margin white, stem long rufescent, the apex 

 striate stained with black. Bidl. t. 58, 561, / 2. Pers. Syn. 



JO. 410. Fr. Syst. Myc. v. I. p. 301 A. acumi?iatus, Schoeff. 



t. 202. — A. carbonarius, Batsch, Elf. 6. Purt. v. 3. p. 428. — 

 A. semiovatus, var. 2, With. v. 4. p. 262. Purt. v. 2. p. 654. 



Pastures and dungy places. May— Jan. Probably not uncommon. 

 Glasgow Botanic Garden, Klotzsch',in Hook. Herb. Benefield, Norths. 

 Rev. M. J. Berkeley.—" Pileus i— 1 inch broad, at length convex, when 

 dry subrufescent, even, never viscid. Gills ascending, close, quite entire. 

 Veil very fugacious. Stem 3 inches high, 1—2 lines thick, rufescent." 

 Fr. I. c. 



