ANALYTICAL KEY 17 



I. Spores white or slightly tinted. 



A. Plants fleshy, more or less firm, decaying soon. 



a. Stem fleshy, pileus easily separating from the stem. 

 ^_ Volva present and ring on the stem. 



Pileus bearing warts or patches free from the cuticule . . . Amanita. 



Volva present, ring wanting \manitopsis. 



Pileus scaly, scales concrete with cuticle, 



Volva wanting ring present Lepiota. - t+h 



Hymenophore confluent, 

 Without cartilaginous bark, 



b. Stem central, ring present (sometimes vague), 



Volva wanting, gills attached Armillaria. 



Without a ring, 



Gills sinuate Tricholoma. Co 



Gills decurrent, 



Edges acute Clitocybe. 



Edges swollen .' Cantharellus. 



Gills adnate, 



Parasitic on other mushrooms Nyctalis. 



Not parasitic, 



Milky Lactarius. 



Not exuding juice when bruised, 



Rigid and brittle Russula. /Fi 



Quite viscid, waxy consistency Hygrophorus. i-oif 



c. Stem lateral or none, rarely central Pleurotus. 



d. Stem with cartilaginous bark, 



Gills adnate . ^\K^.-. jhvA Collybia. 



Gills sinuate Mycena. 



Gills decurrent Omphalia. /3o 



Plants tough, fleshy, membranaceous, leathery, 

 Stem central, 



Gills simple Marasmius. 



Gills branched Xerotus. 



B. Plants gelatinous and leathery Heliomyces. 



Stem lateral or wanting, 



Edge of gills serrate Lentinus. 



Edge of gills entire Panus. 



Gills fold-like, irregular Trogia. 



Edge of gills split longitudinally Schizophyllum. 2 I 2. 



