REVISION OF THE NORTH AMERICAN HYDNACEAE 151 
Plants small, rarely more than 6 cm. wide, drab with bluish margin ; odor 
slight. . cyaneotinctum. 
Plants without orange or blue; usually brown or pallid, or brick-red. 
ileus smooth, lobed, more or less complicated. то. 27. complicatumt. 
Pileus pubescent, subregular, sometimes complicated in n 
Pileus of two distinct layers, the upper felty the lower compac 
Plant brown; pileus obscurely zonate ; substance hy ua 
anous. 5. H. scrobiculatum. 
Bs 
Plant uniform cinnamon brown; stipe subcentral, substance dry. 
ileus convex ; teeth stout, 0.3 mm. wide. 
3. H. velutinum. 
Pileus па to infundibuliform ; teeth capillary, 0.2 
wide. Nuttalhiz, 
Plant more or Jess brick red, stipe ster or ұзағы 
1544; Lar Miis: 
Substance of pileus uniform, ges when etn plant large, 5-8 
m. wide, yellowish bro p pursue 
Hydnellum Carbunculus (Secr.) 
Hydnum Carbunculus Secr. Мус. Suis. 2: 515. 1833. 
Plants terrestrial, mesopodous, gregarious, more or less conflu- 
ent, low, appearing nearly sessile, broad ; pileus convex to plane, 
rarely slightly depressed in center by no means infundibuliform, 
more or less uneven, not colliculose, somewhat round or irregular, 
4-10 cm. wide and by confluence often 20 cm. wide; surface 
woolly-pubescent, often more or less floccose squamulose, azonate, 
whitish at first turning light brown to whitish, with irregular 
blotches of dark brown to nearly black where bruised or touched, 
these latter more or less glabrous, shining, probably from the dried 
juice; substance fibrous, tough, spongy, drab in the upper part of 
pileus, compact, hard, somewhat woody, more or less distinctly 
zonate in the lower part, exuding a thick red juice in the fresh 
plant; margin somewhat thick, obtuse, subfertile to sterile; stem 
stout, very short, deformed, becoming bulbous in the substratum, 
and sometimes subradicating, 1-3 cm. wide, г mm.-1 cm. long 
above ground; teeth slender, terete, acute, decurrent, pinkish- 
white, less than 5 mm. long shortening to the margin about 2 to 
one millimeter ; spores ovoid, tuberculate, brownish, 4-5.5 М; odor 
of akoy nuts, strong ; taste intensely acri 
Нав.: On ground among pine or spruce пее, usually in 
sand. Sept.—Dec. 
Rance: Maine, White; New Jersey, Ellis; Maryland, Shear ; 
Alabama, Earle. 
Exsicc.: Ellis N. Am. Fung. 928, as Hydnum ferrugineum ; 
Ellis and Everhart, Fung. Columb. Cont. Shear, 1409, as Hydnum 
ferrugincum. 
