9 6 



AGARICUS. 



Clitocybe. so various that it is possible to gather individual specimens 10-12.5 cent. (4-5 

 in.) or (in sandy paths) 6-8 mm. (3-4 lin. ) high ; these are at the same time 

 very irregularly formed, excentric, &c. The following varieties in colour are 

 more constant : a) rufous-flesh, pileus when dry somewhat ochraceous. A. 

 farinaceus Huds. Bolt. t. 64. Sow. t. 208. Fl. Dan. t. 1249. A. rosellus 

 Batsch f. 99; b) yellow, gills flesh-colour. Buxb. C. iv. t. 30, /. i; c) pileus 

 yellow-violaceous, ochraceous when dry, gills violaceous. A. impolitus Schum.; 

 d) dark violaceous, pileus becoming hoary when dry. A. amethystinus Bott. 

 t. 63. Sow. t. 187. 



In woods, &c. Extremely common. June-Dec. 



Spores globose, M.J.B. ; echinulate, p-io mk. K. ; rough, 8-10 mk. B. ; 9 

 mk. W. G.S. A most provoking Agaric. Name lac, a resinous substance, 

 produced on trees in the East by the lac insect, used in dyeing. From the 

 peculiar red of the pileus resembling that of gum-lac. Scop. p. 444. Fr. 

 Monogr. i. p. 141. Hym. Eur. p. 108. Berk. Out. p. 113. t. 5. /. 3. C. 

 Hbk. n. 108. Illust. PL 139. S. Mycol. Scot. n. 109. Grev. t. 249. Hussey 

 \. t. 47. Schceff. t. 13. Bull. t. 570.7. i. Krombh. t. 43. / 17-20. Batt. t. 

 18. G /. A. tortilis Bolt, t. 41.7 A is perhaps only a very irregular form. 



194. A.Sadleri B. & Br. Pileus 5-6 cent. (2-2^ in.) broad, light 

 yellow, centre tawny, piano - depressed or umbilicate, at first 

 slightly silky, at length becoming smooth towards the centre. 

 Stem 7.5-10 cent. (3-4 in.) high, about > in. thick except at the 

 base where it is thickened, yellow, with tawny fibrils, becoming 

 smooth. Gills decurrent, thin, very crowded, lemon-yellow, quite 

 entire at the margin. 



Csespitose ; strong-smelling. The taste is intensely acrid, like that of A. 

 fascicularis. Probably of exotic origin. 



On an oak tub in Conservatory. Edinburgh, 1877. Jan.-Oct. 



Name after John Sadler. B. & Br. n. 1734 bis. Trans. Dot. Soc. Ed. 

 xiii. /. 216. S. Mycol. Scot. n. no. C. Illust. PL 127. 



Coiiybia. Subgenus VI. COLLYBIA (/c<toAvos, a small coin). Fr. Syst. 



Myc. i. p. 129. Stem fistulose, cartilaginous or stuffed with a 

 pith, and coated with a cartilaginous cuticle, rooting. Pileus 

 slightly fleshy, neither sulcato-plicate nor wrinkled, the margin at 

 first involute. Gills (membranaceous, soft) free or only obtusely 

 adnexed behind. Epiphytal on wood, leaves, &C., nay on fungi, 

 but often rooted in the ground, not shrivelling or drying up. 



The Marasmii are distinguished from the Collybiae proper by 

 the structure of their gills, their somewhat coriaceous substance, 

 their somewhat persistent tenacity of life, whereby they possess the 

 quality of reviving after being dried up. Fr. Hym. Eur. p. 109. 



The species are in general well marked and easily recognised. 



