LEUCOSPORI. 45 



In fir woods. Uncommon. Sept.-Nov. Tricholoma. 



Name scalpto, to scratch. From its scratched appearance. Fr. Monogr. 

 i. p. 61. Hym. Eur. p. 55. Berk. Out. p. TOI. C. Hbk. n. 50. Illust. 

 PL 215. S. Mycol. Scot. n. 47. Batt. t. 15 F. A. argyraceus, Berk. Eng. 

 Fl. v. p. 18, partly. Var. virescens Wharton, turning yellowish-green. C. 

 Illust. descr. 



** Gills rufescent or becoming cinereous, &c. 



81. A. imbricatus Fr. Pileus 7.5 cent. (3 in.) and more broad, 

 rufous-umber or umber, very opaque, fleshy, compact, broadly 

 convex then flattened, obtuse, very dry, continuous at the disc, 

 otherwise torn into squamules, and fibrillose towards the circum- 

 ference ; margin thin, at first when inflexed slightly pubescent, 

 then quite naked; flesh firm, moderately thick, white. Stem 

 solid, stout, sometimes short, conico-bulbous, 4-5 cent. (iX~ 2 i n -) 

 long, as much as 2.5 cent, (i in.) thick, sometimes extended, 7.5 

 cent. (3 in.) long and almost equal, adpressedly fibrillose, white 

 at the apex, white-pulverulent with squamules. Gills slightly 

 emarginate, almost adnate, somewhat crowded, about 6 mm. (3 

 lin.) broad, wholly white when young, at length rufous. 



Scattered or growing in troops. Stem sometimes pierced by larvae. 

 In pine woods. Frequent. Sept.-Nov. 



The stem is very often variously bent and attenuated at the base. The 

 names of this and of A. vaccinus have been transposed. A. vaccinus is much 

 more scaly than A. imbricatus. Edible according to old authors. Spores 

 6 x 4-5 mk. K. ; 6-7 x 4 mk. B. ; 4 x 5 mk. W. G.S. ; 5 mk. W.P. Name 

 imbrex, a tile ; imbricated. Fr. Monogr. \. p. 64. Hym. Eur. p. 56. Icon, 

 t. 30. Berk. Out. p. 99. t. 4. /. 3. C. Hbk. n. 53. Illust. PL 199, not PL 

 60. S. Mycol. Scot. n. 48. Gonn. & Rab. t. i8./. i. 



82. A. vaccinus Pers. Pileus when young 2.5-5 cent - ( J - 2 in -) 

 broad, when full grown and largest 10-12.5 cent. (4-5 in.), rufous, 

 fleshy, campanulate then expanded, umbonate, wholly torn up into 



floccose squarrose, or, when smaller, adpressed scales, dry, mar- 

 gin at first involute, tomentose ; flesh, alike of the pileus and of 

 the fibrous stem, white, then reddish. Stem about 7.5 cent. (3 in.) 

 long, 8-16 mm. (4-8 lin.) thick, hollow, equal, round, remarkably 

 fibrillose, more or less manifestly furnished with a cortina, naked 

 (not white - pulverulent) at the apex, whitish-rufescent. Gills 

 slightly sinuate, almost adnate, somewhat distant, 6-12 mm. (3-6 

 lin.) broad, at first whitish, then spotted-rufous and at length ru- 

 fescent. 



The flesh of the stem is less diffused into that of the pileus than usual. 

 Growing in troops. Earlier than A. imbricatus, the flesh of the pileus is very 

 much thinner than that of A. imbricatus. The at first involute tomentose 

 margin serves instead of a veil. 



