LEUCOSPORI. 131 



moist in rainy weather ; gills adnate, with a deeurrent tooth, more crowded, Mycena. 

 whitish then flesh-coloured. The colour both of the pileus (normally fuscous 

 then livid) and of the stem (normally becoming livid-fuscous) is much more 

 changeable than that of A. rugosus, becoming yellow, rubiginous, &c. It is 

 not so tough and pliant as A. rugosus. Forms departing from the type are 

 very numerous ; the most beautiful is var. Calopus (KoA.6?, beautiful ; TTOVS, a 

 foot) with chestnut-coloured stems, united in a fusiform tail. Fr. Icon. t. 80. 

 f. 2. Forma subterranea : Buxb. C. 4. 13. /. 2. Ho/m. Subt. t. 3. 



On trunks, stumps, &c. Common. July-Nov. 



Inodorous and tasteless. M.J.B. Spores sphaeroid or subsphaeroid, 9-10 

 x6-8 mk. K.; 8-11x4-6 mk. B. Namegalericulum, a small peaked cap. 

 Peaked in shape. Scop. Cam. p. 455. Fr. Hym. Eur. p. 138. Monogr. i. p. 

 209. Berk. Out. p. 124. C. Hbk. n. 181. Illust. PL 222. S. Mycol. Scot, 

 n. 153. Schce/. t. 52. Bull. t. 518. / C. DE (pileus and stem ferruginous- 

 red). Hoffm. Nom. t. ^./. i. Price f. 55. Gonn. & Rab. t. 7. / 8 (a slender 

 form). Paul. t. 122. /. 7 (f. 8 differs in the odour). Var. Calopus B. dr Br. 

 n. 1410. C. Illust. PL 223. 



272. A. polygrammus Bull. Pileus 2.5. cent, (i in.) and 

 more broad, fuscous, cinereous, livid or becoming light yellow, 

 somewhat membranaceous, conical then campanulate, somewhat 

 umbonate, dry, smooth, striate, margin often toothed. Stem 7.5- 

 10 cent. (3-4 in.) and more long, 2 mm. (i lin.) thick, rigid, tense 

 and straight, fistulose, precisely equal, naked, longitudinally stri- 

 ato-sulcate, strigose-rooted at the base, varying of a silvery colour, 

 livid, blue-grey and becoming azure-blue. Gills attenuated be- 

 hind, so as to appear somewhat free, but uncinate, somewhat dis- 

 tant, white then reddish, sometimes serrulated. 



Odour, as in all neighbouring species, none. Gregarious rather than caes- 

 pitose. It varies with the pileus pruinose, and there is a variety in which the 

 colour of the pileus is beautiful shining white. Very much allied to A. galeri- 

 culatus and A. rugosus, but very easily distinguished by its peculiar bright 

 shining (obsoletely fibrillose) longitudinally striato-sulcate stem. 



On stumps, &c. Common. Sept-Jan. 



Spores subsphasroid, 6-9 mk. K. ; 10-12x6-8 mk. B. ; 9x7 mk. W.G.S. 

 Name iro\vs, many; ypa/u.^, a stroke in writing. From the many lines with 

 which it is marked. Bull. t. 395. Fr. Monogr. i. p. 209. Hym. Eur. p. 139. 

 Berk. Out. p. 124. C. Hbk. n. 182. Illust. PL 223. S. Mycol. Scot. n. 154. 

 Sow. t. 222. Fl. Dan. t. 1615. /. i, 1498. A. chloroticus Jungh. Linn. \. t. 

 ?/ I- 



273. A. parabolicus Fr. Pileus becoming black at the disc, 

 inclining to violaceous, otherwise becoming pale, whitish, some- 

 what membranaceous, at first erect and oval, then parabolic, ob- 

 tuse, never expanded, moist, somewhat shining when dry, smooth, 

 even, striate towards the entire margin. Stem 5-7.5 cent. (2-3 in.) 

 long, 2 mm. (i lin.) thick, fistulose, tense and straight but not 

 very rigid, thickened and bearded-rooted at the base, pale below, 

 dark violaceous above, when young white-mealy, otherwise even, 



