328 AGARICUS. 



Psilocybe. p. 431. Hy7n. Eur. p. 299. Berk. Out. p. 172. C. Hbk. v. 435. Illust. PL 

 608. B. S. Mycol. Scot. ?i. 395. 



734. A. physaloides Bull. — Pileus 7.5-10 cent. (3-4 in.) broad, 

 fiisco2is-pm'ple, slightly fleshy, campaimlate the7i expanded and at 



length flattened, with a proviment umbo, and at length depressed 

 round the umbo, smooth, even, pelliculoso-viscid, shining. Stem 

 2.5 cent, (i in.) and more long, Jist7ilose, Jilzforyu, flexile, adpres- 

 sedly Jibrillose, becoming pale, date-brown at the base. Veil not 

 manifest. Gills adnate, soinewhat deciirrent, crowded, equally 

 attenuated from the stem, pallid ferruginous-fuscous. 



Spores fuscous-purple, almost black on white paper, but violaceous-lilac on 

 a black ground. Very much allied to ^. bullaceus and ^. coprophilus. A. 

 i7iquilimis is easily confounded with it. 



On dung, &c. Uncommon. Sept.' 



Spores 8x6 mk. \V. G.S. ; 12 x 7 mk. B. &^ Br. Name — <^v(raAi?, a bladder ; 

 etSos, appearance. Biitt. t. 566. /. i. F?-. Monogr. i. /. 432. Hym. Eur. p. 

 300. B. &• Br. n. 690. Berk. Out. p. 172. C. Hbk. n. 436. Ilhist. PL 609. 

 A. S. Mycol. Scot. ;/. 396. 



735. A. atro-rufus Schaeff. — Pileus black-rufous or pzirple- 

 fiiscotis, but becoming very pale when dry, slightly fleshy, heini- 

 sphe7'ico-convex, obtuse, smooth, striate at the margin when in 

 fullest vigour, without strias when dry. Stem thin, scarcely 2 

 mm. (i lin.) \\\\zV, JisHilose, equal, at first somewhat fibrillose, then 

 smooth, pallid date-brown, slightly pruinate at the apex. Gills 

 adnate, somewhat decurrent, triangular, plane, umber or purple- 

 umber. 



There are two forms : A. stem longer, fibrillose, pileus smaller. B. stem 

 curt, scarcely 2.5 cent, (i in.), smooth, pileus buUaceous. 



In mixed wood. Glamis, 1876. Nov. 



Spores ovoideo-sphceroid, 6-8x4-5.5 mk. K. Name — ater, black; rufus, 

 red. Schcpff. t. 234. Fr. Monogr. i. p. 433. Hym. Eur. p. 300. B. 6^ Br. 

 n. 1770. S. Mycol. Scot. n. 397. 



736. A. nucisedus Fr. — Pileus light yellowish, slightly fleshy, 

 convex, obsoletely umbonate, even, slightly silky when dry. Stem 

 2.5-5 cent. (1-2 in.) long, fistulose, slender, pallid, somewhat atten- 

 uated downwards, becoming fuscous, w^hite-villous. Gills adnate, 

 broad, plane, fuscous then umber-black. 



Stem often pruinate at the apex. It differs from^. atro-rufus in its habitat 

 being epiphytal, in the stem being paler and tougher, attemiated downiuards 

 and white-villous at the base, in the pileus being somewhat umbonate slightly 

 silky a7id becoming yellow when dry, and in the gills being scarcely decurre/it. 

 Exactly the habit oi A. inguili?ius, but differing chiefly in the fuscous spores. 

 A similar plant occurs on the nuts of hazel, but wholly umber, becoming clay- 

 yellow when dry. 



