LEUCOSPORI. 91 



even; flesh tough, pallid. Stem 2.5 cent (i in.) or a little more Clitocybe. 

 broad, 2-4 mm. (1-2 lin.) thick, stuffed, tough, but wholly fibrous- 

 soft, commonly curt, equal, naked, smooth, cinereous. Gills 

 decurrent, arcuate, very crowded, 2-4 mm. (1-2 lin.) broad, dark 

 fuliginous. 



Often gregarious; almost inodorous. At first sight like a species of 

 Omphalia. 



In woods. Rare. 



Spores ovoid, comma-shaped, slightly punctate, greenish, 10 mk. Q. Name 

 concavus, concave. Scop. Cam. p. 449. Fr. Monogr. \. p. 130. Hym. 

 Eur. p. 102. Icon. t. 57. f. 2. B. cr 3 Dr. n. 1512. 



183. A. brumalis Fr. Pileus livid when moist, \vhitish and at 

 length becoming yellow when dry, commonly darker at the disc, 

 fleshy-membranaceous, at first convex, umbilicate, reflexed at the 

 circumference, 2.5 cent, (i in.) broad, then infunclibuliform, often 

 irregular and undulated, as much as 5 cent. (2 in.) broad, smooth, 

 even. Stem about 5 cent. (2 in.) long, 4 mm. (2 lin.) thick, 

 slightly firm, hollow, equal or slightly thickened at the apex, at 

 length compressed, somewhat incurved, smooth, naked, becoming 

 livid, white when dry, white-villous at the base. Gills decurrent, 

 at first arcuate, then descending, 2 mm. (i lin.) broad, crowded, 

 distinct, livid, then becoming yellow-white. 



Odour weak, not unpleasant. B. Wholly watery whitish. Pileus infundi- 

 buliform, margin deflexed, milk-white when dry; stem fistulose, somewhat 

 striate, smooth at the base; gills less crowded, but rather broad, whitish. 

 Bull. t. 278. A B. 



In woods. Common. Oct.-Jan. 



Spores 3 mk. W.G.S. Name bruma, winter. Fr. Monogr. i. p. 131. 

 Hym. Enr. p. 103. Berk. Out. p. 112. C. Hbk. n. 102. Illust. PI. 114. S. 

 My col. Scot. n. 104. 



V. ORBIFORMES. 

 * Gills becoming cinereous. 



184. A. metachrous Fr. Pileus 2.5-5 cent - ( I-2 in -) broad, 

 fuscous-cinereous when young, then livid, whitish when dry, 

 slightly fleshy, at first convex, soon rather plane or depressed, 

 margin even, slightly striate only when old. Stem about 4 cent 

 (\y* in.) long, 4 mm. (2 lin.) thick, but broader when com- 

 presssed, stuffed when young, round, soon hollow and hence 

 becoming easily compressed, equal, tough, externally fibrous, 

 grey, "uuhite-pruinose at the apex. Gills adnate, scarcely decurrent, 

 crowded, linear, plane, thin, whitish-cinereous. 



