The Mycologic Flo? a of the Miami Valley, 0. 



THE MYCOLOGIC FLORA OF THE MIAMI VALLEY, 



OHIO. 



By A. P. Morgan. 



(Read by Title, March i, 1887.) 



Continued from Vol. IX., p. 8. 



Class I. — Hymenomycetes. 



Order HI.— Hydnei. 



Hymeniiim inferior or amphigenous, effigurate from the first 

 and definitely but variously protuberant into aculei, teeth, tuber- 

 cles, crests and papillae. 



By tar the greater part of the species are resupinate-effused. 



TABLE OF GENERA OF HYDNEI. 



y4, Hymenium aculeate or dentate. 



1. Hydnum. Aculei subulate, discrete at the base. 



2. Irpex. Teeth acute, joined together at the base. 



B. Hymenium tuberculate, ivrinkled, etc. 



3. Radulum. Hymenium of rude, deformed, obtuse tuber- 

 cles. 



4. Phlebia. Hymenium in crowded folds and wrinkles. 



5. Grandinia. Hymenium granulose, the granules globose 

 or hemispheric. 



6. Odontia. Hymenium of warts penicillate multifid at 

 the apex. 



7. Kneiffia. Hymenium strigose-exasperate with rigid 

 setae. 



Genus I. — Hydnum, Linn. 

 Hymenium inferior, aculeate ; aculei subulate, discrete at the 

 base. 



* Pileus stipitate. 



I. Mesopus. Stipe central. 



a. Pileus fleshy, 1-3. 



b. Pileus coriaceous, 4. 



II. Pleuropus. Stipe lateral, 5. 



III. Merisma. Much branched, 6-8. 



