52 FUNGUS-FLOEA. 



HYMENOMYCETES. 



Fungi membranaceous, fleshy, corky, or woody, usually 

 large ; growing on the ground or on wood, hymenium distinct 

 and continuous, ex]iosed from the first or at an early stage of 

 development ; basidia usually tetrasporous ; cystidia often 

 present ; spores septate or more frequently continuous, 

 colourless or coloured, epispore smooth or verruculose. 



ANALYSIS OF THE FAMILIES. 



* Suhstance gelatinous. 



Fam. I. Tremellineae. 



** Substance not gelatinous. 



I Hymenium even. 

 Fam. II. Clavarieae. 



Sporophore erect, clavate, branched, or foliose, entirely 

 covsred by the hymenium. 



Fam. III. Thelephoreae. 



Sporophore resupinate or eifuso-reflexed ; hymenium uni- 

 lateral. 



If Hymenium not even. 



Fam. IV. Hydneae. 



Hymenium spinulose or covered with protuberances or 

 granules. 



Fam. V. PoLYPORiaE. 



Hymenium porous or tubular. 



Fam. VI. Agaricineae. 

 Hymenium spread over radiating gills or lamellae. 



