Hydnacese 



Hydnunu 



HYD'NUM. 



Gr. name for some edible fungus. 



YMENIUM inferior, bearing awl-shaped Spines, 

 distinct at the base. Fries. 



In this genus the spines proceed from an even 

 surface, not folded or wrinkled, and are covered 

 with the spore-bearing surface. 



The forms are extremely variable, the type of 

 the first section, H. repandum, being easily mis- 

 taken for one of the Agaricaceae until examined, 



the stem being nearly central and upright, while in other forms it is 

 lateral or absent. Some are dimidiate (as if part of the pileus had 

 been removed and the plant attached by the remaining portion) ; the 

 lower forms are resupinate. 



ANALYSIS OF TRIBES. 



MESOPUS (Gr. middle, a foot). Page 495. 



Entire, simple, stem central. 



On the ground, mostly in pine woods. 



PLEUROPUS (Gr. the side; a foot). 



Stem lateral. 



None known to be edible. 



MERISMA (Gr. to divide). Page 501. 

 Very much branched or of an irregular form without a distinct mar- 



gin. 



APUS (Gr. without; a foot). Page 503. 

 Stemless, dimidiate, margin distinct. 



RESUPINATI (resupino, to throw on the back). 



Without stem or distinct pileus. 

 None known to be edible. 



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