LEUCOSPORI. 113 



Gills transversely striate. B. &* Br. Name exsculptus, hollowed out. Collybia. 

 From its being umbilicate. Fr. Monogr. i. p. 164. Hym. Eur. p. 123. 

 Icon. t. 66. / 3. Berk. Out. p. 119. B. &> Br. n. 1109. C. Hbk. n. 156. 

 Illust. PL 268. S. Mycol. Scot. n. 130. 



231. A. macilentus Fr. Pileus scarcely 2.5 cent, (i in.) broad, 

 dark yellow, slightly fleshy, convex then becoming plane, obtuse, 

 orbicular, even, smooth, absolutely dry; flesh thin, yellow. 

 Stem 4 cent. (\y 2 in.) long, scarcely 2 mm. (i lin.) thick, obso- 

 letely fistulose, tough, cartilaginous, filiform- equal, not tense and 

 straight but here and there fiexuous, naked, smooth, bright light- 

 yellow, slightly rooted at the base. Gills separating-free, very 

 crowded, narrow, linear, very unequal, of a beautiful pure yellow. 



Its colour is so entirely that of A. cerinus that it may be easily confounded 

 with very small forms of that species. A. cerinus differs, however, in the stem 

 being stuffed, wholly fibrous, not cartilaginous, and externally fibrilloso-striate, 

 in the pileus being at length depressed, dingy yellow, in the "white flesh, and 

 in the gills being broader and in very small forms adnate. 



In pine wood. Corstorphine, &c. 



Spores ovoid-pruniform, 5-6 mk. Q. Name macies, leanness. From the 

 thin flesh. Fr. Monogr. i. p. 166. Hym. Eur. p. 123. Icon. t. 66. f. i. B. 

 & Br. n. 1848. C. Illust. PI. 268. 



232. A. clavus Linn. Pileus 4-8 mm. (2-4 lin.) broad, orange- 

 scarlet, disc often darker, slightly fleshy, very thin, conico-convex 

 then plane, somewhat papillate, smooth, shining, margin slightly 

 striate. Stem scarcely 2.5 cent, (i in.) long, obsoletely fistulose, 

 or only marked with a paler line, very thin, filiform, naked, 

 smooth, whitish, somewhat strigose at the base. Gills adnexecl, 

 ventrtcose, rather broad, somewhat crowded, but not numerous, 

 white, rarely becoming yellow. 



The smallest and among the rarest species in the group, but long celebrated 

 on account of its splendid colours (like those of A. acicula, with which it must 

 not be confounded). 



On twigs, leaves, &c. Rare. 



Differing from A. acicula in its white stem and gills. M. J. B. Name 

 clavus, a nail. From its nail-like shape. Linn. Fl. Suec. n. 1212. Bull. t. 148. 

 A C, 569. Fr. Monogr. i. p. 167. Hym. Eur. p. 123. Berk. Out. p. 119. 

 C. Hbk. n. 159. Illust. PI. 147. S. Mycol. Scot. n. 131. Paul. t. 97.7. 3. 

 Vaill. Par. t. i !._/". 19-20. 



233. A. ocellatus Fr. Pileus scarcely reaching 12 mm. (% in.) 

 broad, often less, whitish, slightly fleshy, conico-convex then 

 plane, marked with small eye-like spots at the depressed, darker 

 (fuscous, rufous, light yellowish), umbonate disc, even, margin 

 here and there crenulate. Stem 2.5 cent, (i in.) or a little more 

 long, delicately fistulose, equal, filiform, tough, smooth, naked (in 



