LACTARIUS. 109 



IV.G.S. Name -full go, soot. From the smoky colour. Fr. Monogr. ii. p. Lactarius. 

 178. Hym. Eur. p. 434. Berk. Out. p. 209. C. Hbk. n. 608. S. Mycol. Scot, 

 n. 574. Ag. Krombh. t. 14. /. 10-12. Barla t. 21. /. 6, 7. Harz. t. 19. ##//. 

 *- 567./ 3- 



36. L. picinus Fr. Pileus 7.5 cent. (3 in.) broad, timber or 

 blackish-umber, zoneless, fleshy, convex becoming plane, umbo- 

 nate, orbicular, dry, even, at first everywhere villous, somewhat 

 velvety (the down innate, not depressed or silky) then when the 

 disc has become smooth wholly continuous on the surface (not 

 rivuloso-flocculose or squamulose) ; flesh firm, but not very thick, 

 pallid. Stem 5-7.5 cent. (2-3 in.) long, comparatively thin, 

 scarcely more than 12 mm. (}4 in.) thick, stuffed, internally 

 spongy, equal, even, smooth, paler than the pileus. Gills adnate, 

 thin, very crowded, straight, plane, ochraceous. Milk white, un- 

 changeable, acrid. 



Very distinguished, rigid, regular. 



In pine woods. Foxley, Hereford. Rothiemurchus. Sept.-Oct. 



Spores round, ochraceous. Fr. ; sphaeroid, echinulate, 5-6 mk. C.B.P. 

 Name picinus, pitch-black. Fr. Monogr. ii. p. 176. Hym. Eur. p. 435. 

 GreviUea, -vol. viii. p. no. S. Mycol. Scot. Supp. Scot. Nat. 1885,^. 74. Ag. 

 Krombh. t. 40. f. 20-22 (f. 19 rather L. acris). 



37. L. lilacinus Lasch. Pileus 5 cent. (2 in.) broad, rosy-lilac, 

 becoming pale, zoneless, fleshy, thin, convex then depressed, 

 papillate, floccose when dry, granular. Stem stuffed then hollow, 

 white-mealy, pallid. Gills adnate, somewhat distant, pallid flesh- 

 colour. Milk white, acrid. 



Fragile. Milk plentiful. 



In woods. Hawthornden. Sept. 



Spores sphaeroid or sphaeroid-ellipsoid, echinulate, uniguttate, 7-10 mk. 

 K. Name from the lilac colour. Lasch. Fr. Hym. Eur. p. 435. Grevil- 

 lea, vol. viii. p. 98. S. Mycol. Scot. Supp. Scot. Nat. 1885, p. 74. 



*** Pileus polished, smooth. 



38. L. volemus Fr. Pileus 7.5 cent. (3 in.) and more broad, 

 rufous-tawny, golden, becoming pale, zoneless, compact, rigid, 

 obtuse, plano-convex, with the margin at the first bent inwards, 

 at length depressed, even, at length rimoso-rivulose, dry. Stem 

 5-6 cent. (2-2 }4 in.) long, 18 mm.-3 cent. (^-i^in.) thick, obese, 

 hard, solid, somewhat equal or attenuated upwards, even, prut- 

 nose, of the same colour as the pileus. Gills adnato-decurrent, 

 2-4 mm. (1-2 lin.) broad, thin, crowded, white to yellowish. 

 Milk white, sweet, plentiful. 



