CLASSIFICATION OP A.GARK 547 



difBcull for the amateur and even for the expert, and hence it is 

 necessary to proceed with extreme caution when collecting for the 

 table. It is best not to eat Entolomas at nil because of the danj 

 of confusing the species. The common Baying, "onlj the mushroom 

 which is pink underneath the cap is Bure to I"- Bafe," illustrates 

 another error in Bo-called "rules to know mushrooms," since here 

 we have a whole genus which the unsuspecting amateur who is 

 told the above, would be likely to take for Igaricus compestris. 



This genus corresponds, by its sinuate-adnate gills, its flesh} 

 fibrous stem, and lack of volva ami annulus, to Tricholotno of the 

 white-spored group and to Hebcloma of the pink-sppred group. 

 Peck reports 23 species in New York; we have been able to identify 

 18 species of those that have been found in Michigan. Others have 

 been collected within our Limits bul need further study. Borne 

 occur seldom: others are more common, especially in Bhowery 

 weather. To what extent certain species are limited to the conifer 

 regions of the State has not yet been determined. 



Pries divided the genus into three sections: Genuini, Leptonidei 

 and Nolandei. To these Peck has added a fourth section of Ameri- 

 ca ii species, which he calls < Jonoidei. 



Key to the 8p^ ties 



i A i I'ileus scaly, scabrous, flocculose or superficially Bilky-flbrillo 

 (a) Pileus white, 5-15 mm. broad, silky, spores 9-12x7-8 micr. 



/-.'. si rit < 'hi in Fr. 

 (aa) Pileus not white, 1-5 cm. broad. 



1 1) » Pileus scabrous, dark brown. 1-" cm. br< 



/:. scabrinellum Pk. 

 (till i Pileus not scabrous, 

 let Pileus and stem tinged purplish <>r wii '.id. 



/•:. cyaneum Pk. (cf. also /•.'. iubatum Ft.) 

 (cc) Pileus and stem net tinged purplish. 

 (di Gills ashy or smoky at first; pileus mouse-gray; stem i 



low. 590. /•.'. intuitu ,n Ft. 

 (dd) Gills whit.' at first; pileus ashy «>r ashy brown. 601. 

 peckianum Hurt 

 (AA) Pileus glabrous, moist, bygropbanous or viscid. 

 (a) Pileus pelliculose or the surface viscid, gelatinous 

 itii Pileus 2-5 cm., gelatinous above, fiesta color 



stem eccentric; rare. (See 699. Pleurotu* subpalmatu 

 i bb i Pileus not reticulated. 



(C) Stem loosely stuffed then hollow, stout; pileUS livid-brownish 



(moist), 7-10 cm. broad. ~' s, '>. /•.'. n>i<iu»i Fr. 

 (co Stem longer, solid; pileus viscid, small. -r. grayish. E. p 

 nuloides Fr. 

 (aa ) Pileus not viscid. 

 (b) Pileus bygropbanous. 

 ici odor and taste farinaceous, at leasl when pia fresb and 



crushed. 

 (d) Gills gray at first; pileus dark brown. 2-6 COL hr" 



ulate i moist I 596 /.'. serii eum Fr. 

 i dd ) Gills white or pallid at Bi 



