HYGROPHORUS. 85 



brick but opaque colour, becoming pale when dry, becoming white Hygro- 

 when older, thin, slightly fleshy at the disc, otherwise membran- P horus - 

 aceous, hemispherical or obtusely campanulate then expanded, 

 always obtuse, slightly viscid, even at the disc, remotely and 

 pellucidly striate to the middle, regular, torn when older. Stem 

 4-7.5 cent. (ij4~3 in.) long, hollow, wholly equal, always thin, 

 scarcely more than 2 mm. (1 lin.) thick, flexuous, even, smooth, 

 slippery, never tense and straight, tawny yellowish, but paler 

 than the pileus, even becoming white. Gills attenuato-ad7iate, 

 at the first slightly ascending, then plano-decurrent, distant, 

 commonly distinct, of the same colour as the pileus, or sometimes 

 inclining to rose-colour. 



Very elegant, densely gregarious, fragile. In habit and opaque tawny 

 colour it is like H. pratensis, but is thin, fragile, juicy, with the pileus some- 

 what repand, and the gills thin and plano-decurrent. The stem is never tense 

 and straight as in H. conicus. There is a var. with the pileus date-brown. 



In mossy places. Perth. 



Spores very pale clay- coloured. B. 5f Br. Name — o-/ad, shade ; <f>aivio, to 

 appear. From its shaded colour. Fr. Monogr. ii. p. 137. Hym. Eur. p. 

 417. Icon. t. 167. f. 1. B. &= Br. ft. 1560. S. Mycol. Scot. n. 532. Ag. 

 Ft. Dan. t. 1845./. 2. 



39. H. laetus Fr. — Pileus reaching 2.5 cent. (1 in.) broad, 

 taw?iy, shining, not becoming pale, slightly fleshy, almost mem- 

 branaceous at the margin, convex then flattened, obtuse, slippery, 

 even or slightly pellucid-striate round the margin; flesh thin, of 

 the same colour as the pileus and paler. Stem 5-7.5 cent. 

 (2-3 in.) long, thin, about 4 mm. (2 lin.) thick, hollow or rather 

 fistulose, equal, tough, even, very smooth, slippery, tawny. Gills 

 somewhat decurrent, distant, thin, somewhat connected by veins, 

 for the most part flesh-coloured, but varying whitish, fuliginous, 

 &c. 



The stem is here and there undulated and darker at the apex, in which it 

 approaches H. psittacinus. It departs from all the others in this group in 

 the toughness, especially of the stem. Appearing in troops. 



In pastures. Frequent. 



Spores nearly globose, 8 mk. B. & Br.; ovoid pruniform, 8 mk. Q. 

 Name — Icetus, joyful, pleasing. From the bright colour. Fr. Monogr. ii. 

 p. 138. Hym. Eur. p. 417. Icon. t. i6j.f. 2. B. df Br. n. 702. Berk. Out. 

 p. 200. C. Hbk. n. 567. S. Mycol. Scot. n. 533. Ag. Pers. 



40. H. vitellines Fr. — Pileus 1-2.5 cent, {yi-i in.) broad, 

 citron-egg-yeUow, becoming white when dry, very thin, slightly 

 fleshy only at the disc, otherwise almost membranaceous, smooth, 

 viscid, margin plicaio-striate. Stem 5 cent. (2 in.) long, scarcely 



