104 



MINNESOTA MUSHROOMS 



Figure 68. 

 cvclomvces greenei 



HYDXUM 



C a p fleshy or tough-fleshy, rarely leathery, 

 central- or lateral-stemmed, stemless, tufted or in- 

 verted ; the spore-surface consisting of spines or 

 teeth. The stemmed, and coral-like forms are the 

 most common. They are all edible. The name 

 is the ancient Greek name of an edible fungus. 



Key to the Species 



1 . Stem central or lateral 



a. Stem central ; on the ground 



( 1 ) Cap shaggy with large imbricated scales 



H. imbricatum 



(2) Cap smooth or nearly so 



(a) Cap and teeth tan to brownish 



H . rcpandum 



(b) Cap and teeth rust-colored 



H. zonatum 



b. Stem excentric or lateral : on cones or wood ; black 

 Stem lacking or indistinct ; cap head-like or coral-like 



a. Cap greatly branched, more or less coral-like 



b. Cap less branched, more head-like ; teeth very large 



( 1 ) Teeth in a uniform dense head 



( 2 ) Teeth on smaller fused heads 



(a) Smaller heads more or less distinct 



(b) Smaller heads indistinct, but giving an irregu- 



lar appearance to the main head 



//. auriscalpium 



H . coralloidcs 



H. crinaccum 



H. capiit-itrsi 



H. caput- medusae 



Hydnum imbricatum Tiled Hydnum 



Cap 5-30 cm. wide, slate-colored to brown, shaggy with coarse more or less 

 regular scales, often separated by deep cracks, firm-fleshy, convex to plane or slightly 

 upturned; stem stout and short. 3-10 cm. by 2-4 cm., brownish; teeth decurrent. 

 gray-brown to brownish, 8-12 mm. long; spores yellowish brown, roughened. 

 7 X 5/M. The name refers to the large scales. 



Common on the ground in pine and spruce woods ; edible, though somewhat 

 bitter when raw. 



Hydnum repandum Buff Hydnum 



Cap 3-12 cm. wide, yellowish or tan. rarely pinkish or brownish, smooth, fleshy, 

 convex to plane, then somewhat depressed; stem 4-10 cm. l)y 1-3 cm., yellowish to 

 whitish, smooth : teeth decurrent. buff^. 6-8 cm. long ; spores globose or angled. 



