NATURAL HISTORY si |(\ i.\ ;;| 



Lawns near Chicago, Harper. Lawns, Ravenswood 5 

 ber. Characterized by its dense white mealiness, bulb 



and strong odor. Pepoon. 



ARMILLARIA. 



Hymenophorc continuous with the stem; annulus present, 

 sometimes only indicated by the scales which clothe the Btem 

 terminating in the form of a ring; pileus usually smooth (often 



somewhat scaly in our single species .1. mellea). All grown 

 the ground. Spores white. 



Armillaria mellea Vahl. 



Pileus fleshy, rather thin except upon the disk, al firsl hemi- 

 spherical or subcorneal, then convex or nearly plane, adorned 

 with numerous hairy squamules, mostly striate on the margin, 

 pale yellowish, dingy-yellowish, honey-color or reddish-brown; 

 flesh whitish, taste unpleasant. 



Lamellae subdistant, adnate or decurrent, whitish or pallid, 

 often with rufescent spots when old. 



Stem equal or slightly thickened at the base, stuffed or hoi' 

 when old, sometimes floccose-squamose, externally fibrous, pallid 

 or brownish. 



Spores 7.5 to 10 x 5 to 6 /x. Pileus 2.5 to 15 cm. broad; stem 

 2.5 to" 15 cm. long, 6 to 20 mm. thick. 



Common in autumn, about the base of stumps; mes in 



large masses. The young plants occasionally have the pileus I hickly 

 beset with erect scales. These disappear with age. The 

 is industriously collected for food by Poles and Bohemians aboul 

 Chicago. The flavor of the cooked plant is s1 rong and unpli 

 to American mushroom-eaters. 



Var. radicata Pk. 



Base of stump, Winfield. August. L898. Specimens with 1 

 spindle-shaped radicating portion of the stem 5 to 9 cm. loi 



TRICHOLOMA. 



Hymenophore continuous with the fleshy stem; veil 

 or only consisting of flocci which adhere to the margin of the pileus; 

 lamellae sinuate behind; pileus often brighl colored. All growii 

 on the ground. Spores white. 



Pileus viscid when moist T. Rust 



Pileus not viscid when moist 



1. Cuticle of the pileus torn into downy or fibrillose scales 

 Cuticle of the pileus even, smooth 



2. Pileus shining-white,, stem smooth 



Pileus cinereous-fuscous, stem fibrillose .... T. m. 



Pileus brown or reddish-brown, stem fibril- 

 lose T. imbricatum 



Pileus ochraceous or tawny, stem tomenl 



squamulose * T. mm. 



3.1 Pileus white .' T. album. 



Pileus violaceous or livid T. p 



