Hydnacese 



Hydnum. The whole plant is reddish. In all other respects it resembles H. 

 repandum. Usually more regular. 



Commonly found in woods. New York, Peck; North Carolina, 

 Curtis, Schweinitz. 



Edible, Curtis. Edible, Leuba. 



Fries considered H. rufescens a variety of H. repandum, and the 

 writer agrees with him. It is given distinct place here because Massee 

 and Stevenson books in the hands of many students of fungi give it 

 importance. 



It is quite as good as H. repandum. 



H. ferrugi'neum Fr. Pileus 1-4 in- across, cor^y, soft, convex, 

 then plane or depressed, irregularly pitted, ferruginous, at first with 

 whitish tomentum. Flesh ferruginous. Spines thin, acute, about 2 

 lines long, rusty-brown. Stem firm, 2-3 in. long, unequal, rusty- 

 brown. Spores subglobose, 4/1, diameter. 



In fir woods. Often gregarious; soft when young, corky and dry at 

 maturity. Massee. 



Mt. Gretna, Pa. November to December, 1898. Among pine 

 leaves. 



Taste mild, mealy. Tough, but when young it cooks tender. 



H. zona'tum Batsch. Ferruginous. Pileus 1-2 in. broad, equally 

 coriaceous, thin, expanded, somewhat infundibuliform, zoned, becoming 

 smooth, radiately-wrinkled , the paler margin sterile beneath. Stem 

 K % in. long, 23 lines thick, slender, somewhat equal, floccose, base 

 tuberous. Spines I i^ lines long, slender, pallid, then rust-color. 

 Stevenson. 



Spores rough, globose, pale watery brown, 4^ diameter Massee. 



New York, Peck, 24th Rep. Mt. Gretna, Pa. Abundant among 

 hemlocks; West Virginia. Mcllvaine. 



Coriaceous. Edible. It will not cook tender, but yields a pleasant 

 flavor to a gravy made of its juices. 



H. albo'nigrum Pk. Pileus convex or nearly plane, broadly ob- 

 conical, tough but soft and densely tomentose on the upper surface, 

 buff-brown or smoky brown, often wholly covered with a whitish downy 

 tomentum, sometimes on the margin only, substance within soft tomen- 



498 



