LEUCOSPORI. 57 



the disc, thinner at the sides, conical then convex, gibbous when Tricholoma. 

 expanded, when in vigour moist on the surface, spotted as with 

 scales, the thin margin naked ; flesh soft, floccose, white, un- 

 changeable. Stem curt, 4-5 cent. (i>-2 in.) long, 2.5 cent, (i in.) 

 thick at the base, reaching 12 mm. (% in.) towards the apex, 

 solid, fleshy-compact, ovato-bidbous, (conical to the middle, cylin- 

 drical above the m\&&\),fibrilloso-striate, white. Gills very much 

 attenuated behind, not emarginate, becoming broad in front, very 

 crowded, quite entire, white. 



Pileus not becoming yellow. Odour weak when fresh, taste pleasant, al- 

 most that of cooked flesh. There are two forms : one larger, solitary, another 

 smaller, connato-caespitose, quite as in A. albellus Sow. t. 122. It is often 

 confounded with smaller forms of A. gambosus. 



In woods. Rare. April-May. 



Spores very small, ovoid, 3 mk. W. G.S. Name diminutive, albus, white. 

 Whitish. Fr. Monogr. \. p. 83. Hym. Eur. p. 67. Berk. Out. p. 104. C. 

 Hbk. n. 70. Illust. PI. 229. Smith in Seem. Journ. Bot. t. 46. f. 45. 

 Gonn. 6 Rab. t. 15. /. 3. A. pallidus Sch&ff. t. 50. ? Tratt. Austr. t. 20. 



** Gills changing colour, &C. 



106. A. amethystinus Scop. Pileus fleshy, convexo-plane, 

 obtuse, repand, smooth, even, moist, spotted azure-blue, margin 

 wrinkled, paler. Stem solid, curt, attenuated at the base. Gills 

 somewhat adnate, crowded, white then rufescent. 



Not well denned or sufficiently known. 



In pine wood. Glamis, 1875. Sept. 



Pale, with here and there a tinge of mouse-colour. Spots bluish-violet, 

 mostly confined to the disc. Of a somewhat faded appearance even when fresh. 

 Name amethystus, the amethyst. From the spots on the pileus. Scop. 

 Cam. ii. p. 437. Fr. Hym. Eur. p. 68. B. 6" Br. n. 1733. S. Mycol. 

 Scot. n. 66. C. Illust. PL 262. 



107. A. tigrinus Schaeff. Pileus 5 cent. (2 in.) broad, pallid 

 brown, variegated with crowded and darker (fuscous} spots, com- 

 pactly fleshy, convex then expanded, obtuse, repand ; flesh thick, 

 firm, white, unchangeable, but thin at the involute margin. 

 Stem 2.5 cent, (i in.) long and thick, very compact, solid, pruin- 

 ate, white. Gills rounded behind, at length decurrent with a 

 tooth, crowded, narrow, white, at length darker. 



Solitary or csespitose. Very distinguished, obese, and without any marked 

 smell of new meal. 



In fir woods and open grassy ground. Rare. June-July. 



