168 



LYCOPERDALES 



b. Stipe not annulate or only slightly so 



(1) Margin of pileus cortinate; stipe some- 



times with incomplete or vanishing an- 

 nulus 



(2) Margin of pileus not cortinate 



(a) Gills decurrent 



(b) Gills not decurrent 



X. Margin of pileus inflexed at first 

 y. Margin of pileus straight from the first 

 B. Spores dark or black, not purple 



1. Gills deliquescing into a black fluid 



2. Gills not deliquescing 



a. Gills exposed above, the trama remaining as 



a volva at the base of stipe; stipe expanded 

 into a disk bearing the gills 



b. Pileus and gills normal 



(1) Pileus fleshy or fleshy-membranous 



(a) Spores globose to elliptic; gills not de- 



current 

 X. Stipe annulate 

 y. Stipe not annulate 

 (x) Pileus fleshy, not striate; gills varie- 

 gated 

 (y) Pileus membranous, striate; gills 

 uniform 



(b) Spores elongate, fusoid; gills decurrent 



(2) Pileus leathery-horny; spores minute, 



globose, hyaline 



Hypholoma 5:1027, K 237; 45 



Deconica 5:1058, K 235 



Psilocybe 5:1043, K 235 

 Psathyra 5:1060, K 235 



Coprinus 5:1070, K 231; 45 



Montagnites 5:1140, K 230 



Anellaria 5:1125, K 235 



Panaeolus 5:1118, K 234 



Psathyrella 5:1126, K 234 

 Gomphidius 5:1137, K 230; 45 



Anthracophyllum 5:1139, K 256 



Order 19. LYCOPERDALES 



Spore-body consisting of a fertile gleba with or without hymenium, borne on 

 a receptacle arising from a volva or with a closed peridium that opens variously 

 at maturity, typically terrestrial, hypogean in one family, occasionally lignicole; 

 spores borne on basidia, 1-celled, hyaline or colored. 



Key to Families 



A. Gleba more or less gelatinous, enclosed at first 



in a volva, then raised on a receptacle, the 

 latter usually stalked 



B. Gleba firm or powdery, rarely gelatinous, with- 



out volva or receptacle but enclosed in a 

 peridium 



1. Peridium epigean 



a. Gleba typically powdery or cellular, enclosed 



in a peridium opening by a definite mouth 

 or irregularly 



b. Gleba enclosed in seed-like peridioles borne 



in a globoid to funnelform peridium 



2. Peridium hypogean, regularly closed 



Phallaceae p. 169 



Lycoperdaceae p. 170 



Nidulariaceae p. 173 

 Hymenogastraceae p. 



172 



