52 AGARICUS. 



Tricholoma. with the figure of Bulliard and with Berkeley's description. The stem is fre- 

 quently twisted, slightly flattened, with deep longitudinal channels. The 

 figure in Cooke's ' Illustrations ' does not represent Bulliard's plant. Spores 

 5X4mk. W.G.S. Name mus, a mouse. Mouse - coloured. Bull. A 520. 

 Fr. Hym. Eur. p. 62. B. & Br. n. 261. Berk. Out. p. 100. C. Hbk. n. 56. 

 Illust. PL 49. ? S. Mycol. Scot. n. 55. Sow. t. 106. 



95. A. virgatus Fr. Pileus grey-cinereous, the umbo often 

 darker, fleshy, but not thick, rigid, convex then flattened, some- 

 what umbonate, very dry even in rainy weather, smooth, becoming 

 even, but elegantly streaked with fine black lines (innate fibrils) ; 

 broken up into squamules when old ; margin straight and at the 

 first naked ; flesh thin, cinereous-whitish. Stem 7.5 cent. (3 in.) 

 and more long, 12 mm. (%. in.) and more thick, solid, firm, equal 

 or tuberous at the very base, striate, commonly smooth, sometimes 

 squamulose, whitish, white within. Gills broadly emarginate, 6- 

 10 mm. (3-5 lin.) broad, crowded, becoming hoary. 



Most distinct. Inodorous taste bitter like gall when young, but flavourless 

 when old. Var. major (in beech woods) pileus black-squamulose, the scales 

 separating. 



In mixed wood. Forres, &c. Aug.-Oct. 



Spores sphaeroid or subsphaeroid, 6-8x5-6 mk. K.; 5-7x4-5 mk. W.P. ; 

 ellipsoid-sphaeroid, punctate, 8-10 mk. C.B.P. ; ovoid, dotted, 6-7 mk. Q. 

 Name virga, a twig or stripe. Streaked. Fr. Monogr. i. p. 75. Hym. Eur. 

 p. 62. Icon. t. 34. /. i. B. & Br. n. 1504. S. Mycol. Scot. n. 56. C. 

 Illust. PL 167. 



IV. SERICELLA. 

 * Gills broad, rather thick, somewhat distant. 



96. A. sulphureus Bull. Pileus i-io cent. (}4-4 in.) broad, 

 dingy or rufescent sulphur-yellow, fleshy, at the first somewhat 

 globose, soon convexo-plane, somewhat umbonate, at length de- 

 pressed, unequal, at the first slightly silky, soon becoming smooth 

 and even. Stem 5-10 cent. (2-4 in.) long, 6-8 mm. (3-4 lin.) and 

 more thick, stuffed, somewhat equal but often curved, rather 

 smooth, striate, sulphur-yellow, of the same colour and fibrous 

 within. Gills adfixed, narrowed behind, arcuato-emarginate, rather 

 thick, distant, distinct, brighter sulphttr -yellow than the pileus. 



Gregarious ; very variable in dimensions ; odour strong, stinking. 



In mixed woods. Common. Sept.-Nov. 



Odour like that of gas-tar or Hemerocallis flava. M.J.B. Probably a dan- 

 gerous species. Spores 4-5 x 2-3 mk. B. Name sulphur, brimstone. Sul- 

 phur-coloured. Bull. t. 168. Fr. Monogr. i. /. 76. Hym. Eur. p. 63. Berk. 

 Out. p. 102. t. 4. /. 4. C. Hbk. n. 62. Illust. PL 62. S. Mycol. Scot. n. 

 57. Sow. t. 44. FL Dan. t. 1910. /. i. Gonn. & Rab. t. 13.7. 2. Paul. t. 

 85- / 3, 4- 



