344 AGARICUS. 



Psathyrella. When dry the pileus is soft to the touch. Gregarious, fragile. Very similar 

 to A. corrugis, and there is a variety corrugated. 



Waysides, hedgerows, &c. Common. July-Oct. 



Spores ellipsoid, 13-14 x 7-8 mk. K. ; 5 x 12 mk. W.G.S. Name — gracilis, 

 slender. Fr. Monogr. i. p. 448. Hym. Eur. p. 313. Berk. OjU. p. 176. C. 

 Hbk. n. 447. S. Mycol. Scot. ?i. 417. SaH?id. &f Sin. t. 37./". i, 2. 



774. A. hiascens Fr. — Pileus 2.5 cent, (i in.) high, livid then 

 becoviing yellow, membranaceous, conico - campcDiiilate, obtuse, 

 smooth, sooji split and opening in furrows (commonly to the 

 middle), the divided margin at length revolute. Stem 7.5 cent. 

 (3 in.) long, 2 mm. (i lin.) thick, fistulose, tense and straight, 

 rigid-fragile, naked, smooth, whitish. Gills adnate, narrow, 

 linear ox somewhat attenuated in front, distinct, distant, whitish 

 then shining black, at length very dead black. 



Spores dead black. In the pileus opening into furrows it has quite the 

 habit of some of the thinner Copri/ii, but the gills are arid, persistent, not 

 becoming liuid. 



In grassy places and hedges. Rare. 



Name — hiasco, to split, gape. Opening in furrows. Fr. Monogr. i. p. 448. 

 Hym. Eur. p. 314. Berk. Out. p. 176. C. Hbk. n. 448. S. Mycol. Scot. n. 

 418. Bull. t. 552./. 2. F. G. 



775. A. aratus Berk. — Pileus 2.5 cent, (i in.) high, f in. 

 across, bright brown, membranaceous, campanulato-conic, rather 

 acute, deeply sulcate ; flesh of the disc of the same colour as the 

 pileus. Stem 12.5 cent. (5 in.) long, fistulose, thickened at the 

 base, smooth, white. Gills quite free, lanceolate, purplish black. 



AlHed \.o\A. hydrophorus Bull., but clearly distinct. 

 Under hedges. Woodnewton. 



Name — aro, to plough. Furrowed, sulcate. Berk. Out. p. 176. C. Hbk. 

 n. 449. Fr. Hym. Eur. p. 314. 



776. A. trepidus Fr. — Pileus 2.5 cent, (i in.) and more broad, 

 date brown at the disc, otherwise fuliginous, membranaceous, very 

 fragile, campanulate, obtuse, smooth, eve7t at the disc, otherwise 

 slightly but densely striate. Stem 7.5 cent. (3 in.) long, almost 

 2 mm. (i lin.) thick, fistulose, equal, toise and stt-aight (rarely 

 flexuous), quite smooth and naked, diaphanous, hyaline. Gills 

 adnate, crowded, ventricose, very \h\\\, fuligi7tous-shini?ig black. 



Spores dead black. 



On moist ground. Hothorpe. 



Spores pruniform, 12 mk. Q. Name — trepidus, trembling. From its very 

 fragile nature. Fr. Monogr. \. p. 449. Hym. Eur. p. 314. Icon. i. 139./. 2. 

 B. er" Br. n. 1956. Fers. Myc. Eur. 3. /. 29./. i. 



