7 



Tubes shallow, irregular, formed by reticulating folds of the hyme- 

 nium ; fructification resupinate, effused, waxy or waxy-gela- 

 tinous ........ Merulius 



Tubes distinct, sunk in separate warts ; fructification resupinate, 

 membranaceous ...... Forotheliutn 



Tubes cylindric or urceolate, closed at first, remaining contracted 

 at the mouth, distinct from one another . . . Solenia 



Fam. 3. HYDNACEAE. ' 



Fructification pileate or resupinate, fleshy or corky ; teeth distinct, 

 awl-shaped or needle-shaped, acute . . . Hydnuni 



Fructification resupinate, effused, membranaceous-floccose, dry, 

 containing brown, stellately branched bodies with slender rays 

 intermixed with the other tissue of the fungus ; teeth setulose 



Asterodon 



Fructification gelatinous, dimidiate ; teeth subulate Tremellodon 



Fructification fleshy, pileate, with central stem or irregularly dimi- 

 diate ; teeth distinct from one another and somewhat broadened 

 into plates irregularly arranged. Our species is small and deli- 

 cate, with the irregular pi/ei often confluent . Sistotrema 



Fructification coriaceous ; teeth arranged in short rows through 

 being connected at the base by folds or plates . . Irpex 



Fructification resupinate, with hymenial surface tubercular ; tuber- 

 cules rude, irregular, commonly subcylindrical, obtuse Radubim 



Fructification resupinate or effuso-reflexed ; hymenium waxy when 

 fresh, wrinkled into tooth-like crests, less wrinkled near the 

 margin. The genus is closely related to Merulius . Phlebia 



Fructification resupinate ; hymenial surface covering equal globose 

 or hemispherical granules which are either obtuse or slightly 

 concave at the apex ...... Grandinia 



Fructification resupinate, dry, with subiculum of interwoven fibres ; 

 teeth or warts multifid or penicillate at the apex . Odontia 



Fructification resupinate, floccose ; hymenial, surface with very 

 minute granules consisting of tufts of bristles . . Kneiffia 



Fam. 4. THELEPHORACEAE. 

 Fructification fleshy or membranaceous, often infundibuliform ; 



