Hyduaceae 



Hydnum. The plants grow in thin woods or in open bushy places and appear in 

 June and July. It is not a common species, and though well flavored 

 it is not of very great importance as an edible mushroom, because of its 

 scarcity and small size. Peck, 5ist Rep. N. Y. State Bot. 



Port Jefferson. July. This fungus has been tested and found to be 

 edible. Peck, 5oth Rep. N. Y. State Bot. 



Mt. Gretna, Pa., 1897. Specimens identified by Professor Peck. 

 Mcllvaine. 



The caps are edible and superior to H. repandum. 



H. fen'nicum Karst. Cap fleshy, fragile, unequal, at first scaly, at 

 length breaking up, reddish-brick color becoming darker, margin 

 undulately lobed, 2-4 in. broad. Flesh white. Stem sufficiently 

 stout, unequal below, attenuated, flexuous or curved, smooth, of the 

 same color as the cap, base acute, light white tomentum outside, inside 

 light pale-blue or dark-gray (wood-ash), 1-3 in. long 1 , .4-1 in. thick. 

 Teeth decurrent, equal, pointed, from white dusky, about 4 mm. long. 

 Spores ellipso-spheroidical or sub-spheroidical, rough, dusky, 4-6)". long, 

 3-5/u, broad. 



Found in gravelly or sandy soil in woods. 



Found at Angora near Philadelphia. Top cracked. Identified by 

 Professor Peck. 



Occurs frequently at Mt. Gretna, Pa., ground in mixed woods. 

 August to September. The taste and smell are at first inviting, but 

 the extreme bitter which develops destroys all desire to eat it. 



H. spongio'sipes Pk. Pileus convex, soft, spongy-tomentose, but 

 tough in texture, rusty-brown, the lower stratum more firm and fibrous, 

 but concolorous. Spines slender, 1-2 lines long, rusty-brown, becom- 

 ing darker with age. Stem hard and corky within, externally spongy- 

 tomentose, colored like the pileus, the central substance often trans- 

 versely zoned especially near the top. Spores subglobose, nodulose, 

 purplish-brown, 4-6/4 broad. 



Pileus 1.5-4 in. broad. Stem 1.5-3 in. long, 4-8 lines thick. 



Woods. Rensselaer and Saratoga counties. August. 



This plant was formerly referred to Hydnum ferrugineum Fr. Peck, 

 5oth Rep. N. Y. State Bot. 



Found in pine woods, near Haddonfield, N. J., by T. J. Col- 



500 



