May, 1907J Mycological Bulletin No. 77 321 



ddd. Pileus tinged yellow or rufous ; stem peronate and 



annulate by a white universal veil C. cancscens Pk. 



cc. Stem not sheathed or ringed ; the universal veil evanescent 

 or absent. 



d. Pileus hygrophaiious, HhriUosc-squainiilosc (like C. paleaceus) 

 e. Pileus dingv' chestnut (moist) ; stem long and slender. . .C. gracilis Pk. 



ee. Pileus grayish; stem stout and short, bulbous C. gricseus Pk. 



dd. Pileus not hygrophaiinus. merely silky or innately Hbrillose 

 e. Pileus reddish-gray, tinged purplish; gills purple or violaceous; spores 



10-12M long C. pulchrifolius Pk. 



C. rubrocincreus Pk. 



ee. Pileus. stem and gills lilac; .spores O-IO/ii C. lilncinus Pk. 



eee. Pileus, stem and gills violaceous at first; spores 10-12," long.... 



C. rimosus Pk. 

 aaa. Spores 4-9/j- long; if longer, plants are whitish or violaceous 

 b. Stem and pileus scaly or shreddy 



c. Scales red (scarlet to vermillion) C. bolaris Fr. 



cc. Scales brown to blackish 



d. Plant large, watery-spongy, soon dark chocolate colored. 



C. squatnulosus Pk. 



dd. Plants of medium size, wood-brown ... .C pholidcus Fr. 

 bb. Stem not scaly. 



c. Stem with more or less persistent annular rings, or peronate 

 d. Plants large. 2-8 cm. or more tall: pileus in proportion 

 e. Pileus watery-cinnamon (moist); gills very distant. .. .C distans Pk. 

 ee. Pileus buff, ochraceous, clay-colored or tawny 

 f. Gills at first yellow or yellowish 



g. Pileus at first buff: stem peronate bv the thin univer^^al veil. . 



C. Hai'ifolius Pk. 



gg. Pileus ochraceous to ferruginous; subannulate 



C. Morrisii Pk. 



ggg. Pileus at first tawny-yellcnv, with pointed squamules on 



disk; ])er(inate by tawny-yellow luiiversal veil 



C. aniiulatus Pk. 

 ff. Gills at first brownisli or ochraceous; jiileus rufous-ocbraceous 



g. Spores elliptical (". lui'clus Fr. 



gg. Spores spherical, minute, 4-."m diameter 



C. Sul'bizU'luS Sp. HOT'. 



eee. Entire plant saffron-\elIow C. eroeeoeolor kaiiff. 



eeee. Pileus some shade of blue or purple when voung, buff to tan when 

 old 

 f. Plants stout, umber-purple to buff; pileus imnctate; in or near 



swamps, in large troops C. umidicola Kauff. 



ff. Mature plants rather slender; pileus fawn-colored, tinged lav- 

 ender when young, not punctate; common in hemlock woods.... 



C. dcceptivus Kautf. 



dd. Plants small, srhaiiiiulate : t'ileus less than 3-4 em. !>road 



e. Pileus fuscous, covered with white villosc fibrils 



C'. faleaeeus (U'ein)n.) Fr. 

 ee. Pileus not \-illose-s(|uamulosi'. cinnamon to chestnut color 



