140 AGARICUS. 



Mycena. edge. Solitary or gregarious, never caespitose. In nature and natural struc- 

 ture it approaches A. galericulatus, so that it was taken (Bull. t. 518.7. e. ) for 

 a slender variety of that species. Otherwise very variable, inodorous, persist- 

 ent, not withering when dry. It varies with the pileus obtuse, wholly lineato- 

 striate, &c. 



In mixed woods among leaves. Frequent. Sept.-Nov. 



The gills vary a good deal in colour, and are sometimes very dark. M.J.B. 

 Name vitilis, plaited. From the deep striae. Fr. Monogr. i. p. 221. Hym. 

 Eur. p. 145. Berk. Out. p. 126. C. Hbk. n. 192. Illust. PI. 189. S. Mycol. 

 Scot. n. 170. Price f. 9. Bull. t. 518. /. O. A. tenuis Sow. t. 385.7. 5. 



294. A. collariatus Fr. Pileus 12 mm. (% in.) and more 

 broad, typically fuscous, but becoming pale, commonly grey- 

 whitish, becoming fuscous only at the disc, membranaceous, 

 campanulate then convex, somewhat umbonate, striate, when dry 

 rigid, smooth, not soft nor slightly silky. Stem about 5 cent. (2 

 in.) long, fistulose, filiform but almost 2 mm. (i lin.) thick, tough, 

 dry, smooth, even or slightly striate under a lens, becoming pale. 

 Gills adnate, joined in a collar behind, thin, crowded, hoary- 

 whitish, or obsoletely flesh-coloured. 



The gills are somewhat distant when the pileus is expanded. There is not 

 a separate collar as in Marasmius rotula : the gills are only joined in the form 

 of a collar, and remain cohering when they separate from the stem. As A. 

 vitilis approaches A. galericulatus, this approaches A. stanneus, and without 

 having both species in hand it is difficult to distinguish them. 



In wood, among oak-bark. Glamis, 1874. Nov. 



In my specimens the pileus had a decided tinge of pink, like A. Adonis, but 

 differing, as Berkeley remarked, in the decidedly striato-sulcate pileus. The 

 attachment of the gills is very distinctive. Spores 8-10 x 4-6 mk. B. Name 

 collare, a collar. From the union of the gills in a collar. Fr. Monogr. \. p. 

 222. Hym. Eur. p. 146. Icon. t. 82. f.$. B. & Br. n. 1520. S. Mycol. 

 Scot. n. 171. C. Illust. PI. 189. 



295. A. speireus Fr. Pileus 4-8 mm. (2-4 lin.) broad, mem- 

 branaceous, conico-convex then plane, at length depressed in the 

 centre, the darker umbo fuscous, otherwise pallid cinereous or 

 whitish, variegated with fuscous striae, smooth, sometimes pruin- 

 ate. Stem about 5 cent. (2 in.) long, i m. (^ lin.) thick, fistulose, 

 very tough, filiform, equal, smooth, shining, white, becoming 

 fuscous at the base, ending with a tail-like fibrillose root. Gills 

 at first adnate, then when the pileus is depressed deeply decurrent, 

 distant, the alternate ones shorter, shining white. 



The stem is not widened into the pileus as in the Mycenarian Omphalicz. 

 In troops but not casspitose; appearing in very rainy weather. 



On mossy trunks in mixed wood. Uncommon. Aug.-Oct. 

 Even when the pileus is most depressed in the centre the darker umbo re- 



