CLASSIFICATION OK AGARICS 



The genus is divided here into three sections, separated funda* 

 mentally by the broad, Bubdecurrenl gilla of the lirsi group, the 

 pellicle of the pileus in the second group, and the bygrophani 

 flesh of the plants in the third group. Few Bpecies bave any record 

 for or againsl their edibility) /'. foenisccii, bowever, is known to 

 be edible. 



A I 1/ hi till Sjl( ci< s 



(A) Pileus hygrophanous. 

 (a) Spores in mass brick-reddish. -77. /' coniaaan* I'k. 

 ( aa i Spores DOl red in mass. 



(b) Larue; pileUfl ■"> 12 em. broad, brown when mol I 270. /' /■ 



sp. nov. 

 i bb ) Smaller; pileus t cm. or less In width. 

 (c) Spores large, 13-18 mlcr. long;, common on lawns and 



places. 276. P. f<n nisei U Kr. 

 (cc) Spores less tban 13 micr. long. 

 (d) Pileus Buhviscid and rufous-brown when moist; gills 

 broadly adnate. 

 (e) Growing on dung or pastured fields, 264. /'. tut \scido 



Pk. 

 (ee) Growing on the ground in woods. 265. P. atrorufn IV 

 (dd) Pileus not subviscid; gills not subdecurrent. 



(e) Stem pale fuscous, 10-15 cm. long; on sphagnum. 267 /' 



a! nibriniiii n Ft. 

 (ee) Stem white, shorter. 



(f) Spores small, 6-7 micr. long. 



(g) Pileus 1-4 cm. broad, livid-brown when moist and 



striate. 271. P. cernua Ft. 

 (gg) Pileus less than 1 cm. broad, dull brownish wl 

 moist, spotted. 275. P. SubmacuUltQ Atk. 

 (ff) Spores S-10 micr. long or longer, pileus dark brown 

 when moist, 

 (g) Stem falsely bulbous from adhering sand, often sub 

 caespitose and clavate. 27::. /'. arennlina I'k. /' 

 ammophila Mont. 

 (gg) Stem not markedly enlarged by adhering sand, equal 

 (h) Gills narrow; spores 10-12x6 micr; stem Blender, 



1-2 mm. thick. 272. P. murcida 1 

 (hh) Gills medium broad; Bpores 7-9x4-6 micr.; stem 

 ::-4 mm. thick, Bhorter. 27 \. P. agroriella Atk 

 (AA) Pileus not hygrophanous. 



(a) Pileus with white fibrils or hairy scabs on the lUrface; OB 



colored. 268. P. canofaciens <'ke. 

 (aa) Pileus glabrous except margin, viscid or subviscid 



(b) Stem long, 7-10 cm., pileus grayish olive; on sphagnum or dung 



268. /'. urla Ft. 

 (bb) Stem shorter; pileus without olive tints. 



(c) On dung; pileus livid-brownish-yellow; Kills broadly adi. 



spores very large. 263. P. merdaria I'r 

 (cc) On the ground in woods; pileus tawny fulvous ; pills emargln- 

 ate-adnate. 219. P. crimen Kr. 



Section I. Deconicae. <;ills broad and broadly adnate, some 

 times decurrenl by ;• tooth; margin of pileua ;it Aral with •< i'" 1 

 culose or fibrillose, delicate and very evanescent veil. 



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