NATURAL HISTORY si RVEY pj 



DESCRIPTION OF GENERA AND SPECIES 



HYMENOMYCETES. 



Key to Chicago Families and Genera. 



Hymenium not an even surface, but 

 on radiating lamellae, these 



visually inferior in position. .Fam.I. Agaricaceae 

 lining the interior of tubes or 



pores Fam. II. Poli pob \< i. \i. 



covering needle-shaped or 



other fleshy protuberances. . Fam. III. II vi>\ vce \i: 

 Hymenium even, and 



inferior, plant tough Fain. IV. Thelephorai eae 



on all sides of the upper parts 

 of erect fleshy clubs or dense 



branches, plant tender Fam. V. Ci. w \i;i \< eae 



on the outer surface of a ge- 

 latinous mass Fain. VI. Tremell \< i: \i: 



Fam. I. Agaricaceae. 

 Spores white or whitish (in a few eases slightly tinted) . . 1 



Spores rosy, rusty pink, or salmon color 13 



Spores ochraceous or subferruginous 1!) 



Spores black, dark brown, or purplish-brown 25 



1 Pileus more or less fleshy, putrescent ■_! 



Pileus fleshy-tough, or even corky, not putrescent, reviving 



with moisture II 



2 Stem fleshy, separating easily from the pileus :i 



Stem fleshy or fibrous-elastic, confluent with 



and of the same structure as the pileus I 



Stem cartilaginous, confluent with the pileus, 



but of a different structure 7 



3 With volva and annulus Amanita. 



With volva, annulus wanting Vmanitopsis. 



Without volva, annulus present Lepiota. 



4 Without volva or annulus ."> 



Without volva, with annulus, lamellae at- 

 tached to the stem \rniillaria. 



5 Lamellae sinuate Tricholoma. 



Lamellae decurrent 6 



6 Edge of lamellae acute Clitocj ! 



Lamellae often branched, edge obtuse Cantharellus. 



7 Lamellae adnate, margin of pileus at firs! 



involute Collybia. 



Lamellae sinuate, margin of pileus at first 



straight Mycena. 



Lamellae decurrent, pileus usually umbilicate.< >mphalia. 



