140 NORTH AMERICAN FLORA [VoLUME 9 
9. Ceriomyces conicus (Rav.) Murrill, Mycologia 1: 146. 1909. 
Boletus conicus Rav.; Berk. & Curt. Ann. Mag. Nat. Hist. IT. 12: 430. 1853. 
Pileus convex or subconic, 2.5-5 cm. broad ; surface clothed with fasciculate, appressed, 
yellowish flocci: context white, unchangeable, tasteless; tubes ventricose, flesh-colored, 
becoming darker at the maturity of the spores, mouths small, angular, edges subfimbriate : 
spores fusiform, smooth, subferruginous, 14-16 «5-64: stipe tapering upward, pale-yel- 
low, glabrous, not reticulate, 5 cm. long, 12 mm. thick. 
TYPE LOCALITY: South Carolina. 
Habitat: Damp pine woods. . 
DISTRIBUTION: Known only from the type collection. 
10. Ceriomyces Vanderbiltianus Murrill, Mycologia 1: 146. 1909. 
Boletus Vanderbiltianus Murrill, Torreya 8: 215. 1908. 
Pileus subconic, 2-3 cm. broad, 1-2 cm. thick; surface smooth, dry, conspicuously 
ornamented on the umbo with dense, pointed, imbricate, dark-purple scales, which become 
gradually smaller and give place to minute purplish specks near the margin, the color chang- 
ing from atropurpureous to latericeous; margin thin, undulate, pale-roseous, with a distinct 
inflexed sterile portion 1 mm. broad: context thick, fleshy, firm, cream-colored, unchange- 
able, taste sweet or very slightly bitter; tubes adnate, the longest not over 4 mm., salmon- 
colored near the margin, incarnate as the spores mature, mouths angular, 1 mm. or less 
broad, elongate to 2 mm. near the stipe, edges thin, entire: spores oblong-ellipsoid, 
smooth, pale ochraceous-brown, 9-12 X 2-34: stipe curved, cylindric, slightly enlarged 
above, even, delicately pruinose to glabrous, deep salmon-colored, changing to incarnate, 
darker on bruising, lighter above with a slight glaucous bloom, finely purplish-dotted like 
the margin of the cap, solid and cream-colored within, 2-3 cm. long, 0.5-0.8 cm. thick. 
TYPE LOCALITY: Pink Bed Valley, North Carolina. 
HapBitTaT: By the roadside in thin oak woods. 
DISTRIBUTION: Known only from the type locality. 
11. Ceriomyces flaviporus (Earle) Murrill, Mycologia 1: 147. 1909. 
Boleius flaviporus Earle, Bull. N. Y. Bot. Gard. 3: 297. 1905. 
Pileus rather thin, convex to expanded, 6-9 cm. broad ; surface smooth, viscid, not 
glutinous, shining, chestnut-brown: context whitish to brownish, unchanging, taste mild ; 
hymenium plane, tubes usually deeply depressed, but decurrent for nearly 1 cm. in anas- 
tomosing lines, bright lemon-yellow when young, becoming deep-yellow or flavid with 
age and retaining this color in dried specimens, mouths small, 1 mm. broad, angular, edges 
thin : spores narrowly ellipsoid, smooth, yellow, 15><6 4: stipe subequal or slightly ven- 
tricose, yellowish and smooth or marked with glutinous granules above, tomentose and 
white stained with brick-red below, solid, 6-9 cm. long, 1.8 cm. thick. 
TYPE LOCALITY: Stanford University, California. 
HaBitTaT: Among decaying oak leaves. 
DISTRIBUTION: Known only from the type locality. 
12. Ceriomyces auriporus (Peck) Murrill, Mycologia 1: 147. 1909. 
Boletus auriporus Peck, Ann. Rep. N. Y. State Cab. 23: 133. 1872. 
Boletus innixus Frost, Bull. Buffalo Soc. Nat. Sci. 2: 103. 1874. (Type from Vermont.) 
Boletus caespitosus Peck, Bull. Torrey Club 27: 17. 1900. (Type from Virginia.) 
Pileus circular, plano-convex, 2-4 cm. broad, 0.5-1 cm.thick ; surface reddish-brown or 
yellowish-brown, rarely grayish-brown, sometimes brown with a reddish-yellow tint or red- 
dish-brown in the center and olivaceous toward the margin, glabrous or minutely tomentose, 
slightly areolate at times with age, the interstices appearing yellow, usually dry, but some- 
what viscid in wet weather ; margin even, thin, somewhat obtuse, slightly infiexed on dryin gy 
concolorous: context firm, fleshy, 3-5 mm. thick, white, unchangeable, tinged with red 
under the cuticle, at first mild, then unpleasant to the taste, the cuticle decidedly acid: 
tubes plane or convex, adnate or nearly free, with a broad shallow depression about the 
stipe, 3-5 mm. long, bright golden-yellow, unchanging, even after years in the herbarium, 
