320 Mycological Bulletin No. 11 [Vol. V 



gg. Stem not marginate-bulbous 



h. Pileus yellow; gills violaceous to cinnamon; stem white 



with violaceous apex C. Bcrlcsiaiius Sacc. & Cub. 



(Syii.—C. tricolor Pk.) 



hh. Pileus and gills lilac ; plant small 



C. crocco-cocruliits (Pcrs.) Fr. 

 ddd. Pileus icith Jicithcr oliz'accous nor z'iolaccoits tints 

 (except the first) 

 e. Pileus glutinous 



f. Gills olivaceous; pileus 1irownisli-(ichraceous C. ghttiiiosits Pk. 



ff. Gills whitish at first 



g. Pileus bay-red C. iiiacitlipcs Pk. 



gg. Pileus pale ochraceous, spores globose. .C sphaerosporits Pk. 

 fff. Gills violaceous at first, spores as in preceding. . .C. delihiitits Fr. 

 ee. Pileus not glutinous 



f. Stem marginate-bulbous 



g. Gills at first whitish C. luultiformis Fr. 



gg. Gills at first blue C. glaucopits Fr. 



ggg. Gills at first yellow C. fnlgens (Alb. & Schiv.) 



ff. Stem not marginate-bulbous, clavate to subequal 

 g. Gills and stem pallid at first, soon tinged brown 



h. Pileus watery-cinnamon to brick-red on disk ; in woods 



C. glabrellus sp. iiot'. 

 hh. Pileus whitish to pale clay-color; in mushroom and 



flower-beds C intnisiis Pk. 



gg. Gills and ape.x of stem violaceous at first, soon brownish 



C. Ian at i pes Pk. 

 ggg. Gills and pileus drab-gray; viscid uiuversal veil present 



C. sterilis Kauff. 

 B. Cuticle of pileus not cont/^osed of gelatinous cells. Iioice never fiscid 

 nor gelatinous, \lnoloina, Talanionia, Ihvniocybe. and Hydrocybe.] 

 a. Spores 12-16/jl long 



b. Pileus rather large, squnmulosc ; whole plant dark violaceous 



C. riolaceus Fr. 

 bb. Pileus small, chestnut color; stem white; spores Hixlli".... 



C". sericipes Pk. 

 r.a. Spores 10-12^ long 



b. Plants small, 2-4 cm. tall 



c. Pileus hygrophanous, glabrous, l)ay-red (moist) ; gills 



subrochraceous C. badius Pk. 



cc. Pileus not h\groplianous, dcnslx libriilose; gills yellow 



C. aureifolius Pk. 

 bb. Plants larger 

 c. Stem distinctly sheathed or ringed I)y the universal veil 



d. Pileus tawny; stem with cinn.'ibnr-colored, persistent, con- 

 centric rings C. annillafus (Alb. & Schii'.) 



dd. Pileus purplish-brown, copper-brown, etc., to drab; stem 



peronate, i. c., sheathed with a unixersal veiL.C torvus Fr. 



C. torz'us nobilis Pk. 



