158 AGARICINI. 



445. Agaricus (Panaeolus) subbalteatus. Berk. <^' Br. 



" Zoned Pangeolus." 



Pileus convex, fleshy, hygrophanous, fawn-coloured, pallid 

 when dry, zoned, rugiilose; stem fragile, with white fibrils ; gills 

 brownish, adnate, subventricose. — B. ^ Br. Ann. N.H. no. 923. 



In a tare field. Sept. Apethorpe. 



Caespitose. Pileus l|-2 in. across, at first convex, -wifh the margin slightly 

 incurved, then expanded, obtuse, or slightly umbonate, irregular, rather 

 fleshy, hygrophanous, of a dull deep fawn colour, pallid when dry, slightly 

 rugose, and marked near the margin with a dark narrow zone ; veil none ; 

 stem 2-2^ in. high, 2 lines thick, fistulose, red brown, brittle, stringy, split- 

 ting longitudinally, marked with short white fibrils ; gills brownish, slightly 

 ventricose, adnate, margin white, slightly toothed. Spores black. Closely 

 allied to A. ci/icfiihcs, Bolt, but differing in habit, &c. — B. c6 Br. 



446. Agaricus (Panaeolus) fimicola. Fr. " Dung Panreolus." 



Pileus somewhat fleshy, campanulato-convex, obtuse, smooth, 

 opaque ; marked near the margin with a narrow brown zone ; 

 stem fragile, elongated, equal, pallid, pniinose above ; gills ad- 

 nate, broad, variegated with grey and brown. — Fr. Ej^icr. p. 

 237. Buxb. iv. t. 28, f. 4. Bolt. t. 66, /. 1. 



On dung, rich pastures, &c. [United States.] 



ISTot gathered since Bolton's time- Stem 3-4 in. long, 1 line thick, dingy. 

 Pileus obtuse, even, smooth, dingy grey when moist, clay-coloured when 

 dry. Flesh greyish white. 



Sub-Gen. 34. Psathyrella. Fr. Epicr. 237. 



Spores black, oval, smooth, or echinulate ; veil inconspicuous, 



not interwoven, generally absent; pileus membranaceous, 



striated, margin straight, adpressed to the stem, not exceeding 



the gills; stem confluent with but heterogeneous from the 



hymen ophore ; gills adnate or free. (PI. VI., f. 34.) 



The species are ail very slender, and the only other subgenus with black 

 spores ( Panceolas), is readily distingaished by the characters of the pileus ; 

 it agrees in every point with PsaJJiyra, except the colour of the gills being 

 never brown or purple, and the spores black. It also agrees, more or less, 

 in structure with Mycena, Xolanea, and GaJera, and also appears to be allied 

 to BoLBiTius, which, however, is at once distinguished by its coloured 

 spores. — W. G. S. 



Sect. 1. Stem straight, smooth. 



o-"^? 



447. Agaricus (Psathyrella) gracilis. Fr. "Slender 



Psathyrella." 



Pileus submembranaceous, conical, slightly striate when 

 moist, hygrophanous ; stem slender, straight, naked, pallid ; 



