CORTINARIUS. 55 



Somewhat caespitose. It varies in stature, sometiines much smaller. Cor- Hygrocybe. 

 tina remarkably fibrillose, lax, not forming a zone. Manifestly allied to C. 

 armeniacus ; they might be easily confounded when this is old and changed 

 in colour. 



In grassy places. Woolhope Foray, 1885. Oct. 



Name — saturnine, gloomy. Of the dark colour. Fr. Monogr. ii. p. 99. 

 Hy?n. Eur. p. 390. Grevillea, vol. xiv. p. 39. 



112. C. imbutus Fr. — Pileus 7.5 cent. (3 in.) broad, toast-brown 

 then pale yellowish, somewhat unequally fleshy, convex, obtuse, 

 even, smooth, obsoletely hoary -fibrillose towards the margin. 

 Stem 7.5 cent. (3'in.) long, not 2.5 cent. (1 in.) thick, solid, equal, 

 sometimes twisted, becoming even, scarcely fibrillose, whitish, 

 pale violaceous at the apex, of the same colour internally. Cor- 

 tina white, adhering to the margin of the pileus and to the apex 

 of the stem, fugacious. Gills rounded, somewhat distant, 6 mm. (3 

 lin.) broad, with narrower and shorter ones intermixed, at the first 

 dark bluish-grey or violaceous- cinereous, never purplish, then 

 watery cinnamon. 



Flesh dingy, manifestly violaceous only at the apex of the stem. It ap- 

 proaches C. subferrugineus in the same way as C. saturninus approaches C. 

 armeniacus. 



In woods. Dinmore. 



Name — imbuo, to soak, stain. Perhaps from the dyed flesh. Fr. Monogr. 

 ii. p. 100. Hym. Eur. p. 390. Grevillea, vol. viii. p. 109. 



113. C. castaneus Fr. — Pileus fuscous-chestnut, scarcely becom- 

 ing pale when dry, but shining, umbo becoming black, paler at 

 the circumference, slightly fleshy, but firm, almost pliaiit, cam- 

 panulate then flattened, not or only obtusely umbonate, often 

 irregular, even, smooth. Stem about 2.5 cent. (1 in.) long, 4-6 

 mm. (2-3 lin.) thick, somewhat fistulose (when young also stuffed), 

 tough, externally cartilaginous, slightly fibrillose with the veil, 

 otherwise smooth, even, somewhat equal, pallid violaceous or pal- 

 lid rufescent, unchangeable when dry. Cortina entirely fibrillose, 

 scanty, white. Gills adnate, but varying emarginate, crowded, 

 thin, 4-6 mm. (2-3 lin.) broad, edge whitish, violaceous then fer- 

 ruginous. 



Gregarious, even caespitose, polymorphous, always very small. The pileus 

 is often obsoletely white-silky round the margin with the cortina. Spores dark 

 ferruginous. 



In woods, &c. Common. July- Oct. 



Odour none ; taste like Marasmius oreades. M.J.B. Name — castaneus, 

 chestnut. Fr. Monogr. ii. p. 101. Hym. Eur. p. 391. Berk. Out. p. 194. 

 C. Hbk. n. 537. S. Mycol. Scot. n. 499. Ag. Bull. t. 268. 



