CLASSIFICATION 395 



Distinguished from H. Icevigatum by the wavy or lobed edge of 

 the cap and the fragile substance. 



On the ground under pines, heather, etc. 



H. repandum (PL XXVII, fig. 7). — Cap fleshy, ■ often irregular 

 and more or less lobed, pale dull opaque yellow, almost smooth, 

 2-4 in. across ; stem short, stout, pale ; spines short, brittle, pale. 



In woods on the ground. Edible. 



H. rufescens. — Every part rufescent, thinner than H. repandum, 

 of which it is considered by some as a variety. 



H. acre. — Cap fleshy, top-shaped, depressed, yellowish ochre, 

 centre darker ; stem short and thick, darker than cap ; spines 

 greyish yellow. Pungent taste. 



Known by the hot, acrid taste. 



Sandy pine and chestnut woods. 



H. compactum. — Cap irregular, greyish olive or brownish, corky, 

 3-6 in. across ; stem short, often crooked ; spines short, brownisli. 



Cap often very irregular, and stem almost obsolete. 



Among conifers, heather, etc. 



H. aurantiacum. — Cap orange-yellow, corky, 2-6 in. across ; 

 stem stout, orange ; spines whitish, then tinged brown. 



In pine woods. 



H. ferrugineum. — Cap becoming flat or depressed, corky, rusty, 1-4 

 in. across ; stem 2-3 in. long, rusty brown ; spines thin, short, rusty 



On the ground in pine woods. 



H. scrobiculatum. — Entirely rusty. Cap convex, then depressed, 

 downy, centre slightly scaly ; stem short, often rooting ; spines 

 short, fragile, running partly down the stem. 



Gregarious and often growing into each other. 



On the ground in pine woods. 



H. zonaimn. — Entirely rusty. Cap 1-2 in. across, zoned, radi- 

 ately wrinkled ; stem slightly scaly ; spines short, slender. 



Differs from H. scrobiculatum in the zoned, wrinkled cap. 



On the ground in pine woods. 



H. nigrum. — Cap blackish blue, corky, downy, and tuberculose, 

 2-4 in. across ; stem stout, black, rooting ; spines short, whitish ; 

 flesh black. 



In pine woods. Often growing into each other. 



H. graveolens. — Cap leathery, thin, wrinkled, blackish brown, 

 edge whitish, grey when dry, i-i| in. across ; stem slender, dark ; 

 spines grey, running down the stem. Smell hke mehlot. 



In pine woods. Scent retained for years. 



H. melaleucum. — Cap flat, irregular, rigid, striate, lilack, edge 

 white, 1-2 in. across ; stem slender, black ; spines short, whitish. 



Distinguished from H. graveolens by absence of smell. 



In pine woods. 



