80 ruNGT, [Agaricus. 



convex or plane in maturity ; thin for the size of the plant, but rather 

 firm ; pleasant yellowish-brown ; epidermis rugose, the rugoe branched 

 like veins. Gills broad, ventricosc, free, white changing to rose-colour 

 from the sporules. Stein 2—4 inches high, 3 — 4 lines thick, whitish, 

 somewhat twisted, mostly hollow, frequently incurved at the base which 

 is slightly thickened." Grcv. Fl. Ed. It does not appear that there 

 are processes upon the gills. 



Subgenus 14. Leptonia ; (from Xscrroc, slender.) Stem dis- 

 tinct from the pileus, when young stuffed with down^ then more 

 or less hollow^ equcd, slender, rather firm, tinged with blue, Pileus 

 carnoso-mcmhranaceous camjjanidate or convex, then eocpcinded, 

 dry, never stricde, fibrillose or squcimulose, sometimes zimbilicate. 

 Gills obtuse, behind free or fixed, not decurrcnt, unequal^ rather 

 broad f at length flesh-coloured. Bluish or grey. 



2L3. A, griseo-cydneus, Fr. {grey 4" ^^ite Agaric) ; pileus 

 squamulose lilac-grey, gills free, stem hollow fibrillose blue. 

 Fr. Syst. Myc. v. 1. ]). 202. — A. atro-cyaneusy Pers. Syn. p. 

 344. 



Grassy places. July — Sept. East Morden. Dors. — Pileus 1 inch 

 broad, subcarnose, at first conico-hemisphaerical, then convex, at length 

 umbilicatc, scaly, the scales sometimes reflexed, of a beautiful pinkish 

 niouse-grcy, turning pale when dry ; margin not striate. Gills quite 

 free, ventricose, rose-coloured. Sporules elliptic, rose-coloured. Stem 

 1—2 inches high, ^ of an inch thick, deep blue or hlac-grey, finely 

 fibrillose, brittle, downy at the base. My specimens differ from those 

 of Fries in being umbilicate when old. The gills are quite free and 

 very different in ]shape behind from A. serrulatus. Bolton's A. pur- 

 jmreus quoted here by Fries, is evidently a small state of A. purus. 

 Jt is described as clammy, which is wholly at variance with the species 

 before us. 



214. A. chalybeus, Pers. (dark-blue Agaric) ; pileus squamosa 

 blue, gills adnate bluish- white then purplish, stem stiifiPed 

 smootli blue. Pers. Syn. ]). 343. Ic. Pict, t 4./. 3, 4. Fr. 

 Syst. Myc. v. I. p. 203. Grev. Fl. Ed. p. 385.— yl. columba- 

 rius, Sow. t. 161. b. — A. glaucus, Bull. t. 52\.f 1. 



Amongst grass. July — Sept. Kirriemuir. Klotzsch, in Hook. Herb. 

 East Morden. Dors. Rev. M. J. Berkeley. — Subgregarious. Pileus 

 ^ — 1 inch broad, convex, minutely umbonate, scaly, dark-blue or almost 

 black, subcarnose, slightly striate on the margin; flesh dark-blue. 

 Gills at first pale then clouded lightly of the colour of the pileus. 

 Sporules rose-coloured, elliptic with a globular nucleus. Ste?n Hinch 

 high, 1 line thick, stuffed, at length hollow, indigo without, dark within, 

 nearly smooth above, downy at the base. 



215. A. columbdrius, Bull, (dove-coloured Agaric); pileus 

 nearly plane grey streaked with black fibrillso, gills adnate at 

 length nearly free, stem elongated. Btdl. t. 413. y. 1. — A. 

 serrulatus, var. (3. Fr. Syst. Myc. v. 1. p. 204. 



Amongst grass. Autumn. Locko Park, near Derby. Pev. M. J. 

 Berkeley. — Pileus \h inch broad, umbilicatc, lilac-grey streaked with 



