Part 3, 1910] BOLETACEAE 141 
mouths concolorous, variable in size, small and circular when young, medium or large and 
irregularly polygonal when old, edges thin, entire: spores oblong-ellipsoid, curved at one 
end, lemon-yellow, 8-10 K 4-5: stipe central, short, slender, curved, tapering upward, 
nearly glabrous, pulverulent under alens, slimy in wet weather, concolorous or paler, slightly 
striate above from the decurrent edges of the tubes, solid, white or discolored-yellowish 
tinged with red within, 2-4 cm. long, 4-8 mm. thick. 
TYPE LOCALITY: North Elba, New York. 
HasitTaT: Thin dry woods and shaded roadsides. 
DISTRIBUTION : New England to Alabama. 
13. Ceriomyces auriflammeus (Berk. & Curt.) Murrill, 
Mycologia 1: 147. 1909. 
Botetus aurifilammeus Berk. & Curt. Grevillea 1: 36. 1872. 
Pileus convex to expanded, 6-8 cm. broad, 1-2 cm. thick; surface dry, slightly viscid 
after a rain, tomentose, bright-yellow, sometimes partially covered with a scarlet pulveru- 
lence; margin thin, entire: context white, unchangeable, somewhat colored just beneath 
the pellicle, not bitter; tubes plane or convex, adnate, radially elongate near the stipe, 
decurrent, greenish-yellow, mouths angular, usually slightly scarlet when looked at side- 
wise, especially in dried plants, rarely conspicuously scarlet over most of the hymenium : 
spores pale-yellow, smooth, oblong-ellipsoid, 9-11 3-4: stipe enlarged above, usually 
tapering below, but sometimes bulbous, very variable in size, 5-9 cm. long, 0.5-1 cm. thick, 
colored and clothed like the pileus, distinctly and beautifully reticulate, sometimes entirely 
to the base. 
TYPE LocALITY: North Carolina. 
HaBiTaT: Thin soil in deciduous woods. 
DISTRIBUTION: New York, Pennsylvania, Kentucky, and North Carolina. 
14. Ceriomyces parasiticus (Bull.) Murrill, Mycologia 1: 148. 1909. 
Boletus parasiticus Bull. Herb. Fr. pl. 451, f. 1. 1789. 
Versipellis parasitica Quél. Ench. Fung. 159, 1886. 
Xerocomus parasiticus Quél. Fl. Myc. Fr. 418. 1888. 
Pileus convex to expanded, 5-8 cm. broad; surface dry, finely tomentose to glabrous, 
becoming tessellately rimose, dingy~yellow or cinereous: context whitish ; tubes decurrent, 
of medium size, golden-yellow: spores fusiform, smooth, pale-brownish, 12-15 K 44: stipe 
incur¥ed, glabrous, solid, yellow without and within, 4-10 cm. long, 0.5~-1 cm. thick. 
TYPE LOCALITY: France. 
HABITAT: Parasitic on species of Scleroderma. 
DISTRIBUTION : New England and New York ; also in Europe. 
ILLUSTRATIONS: Bull. Herb. Fr. pl. 451, f.1,; Sturm, Deuts. Fl. Pilze 57: 2:7, Gill. Champ. 
Fr. pl. 70; Boudier, Ic. Myc. 1: pl. 145. 
ExsiccaTr: Sydow, Myc. Mar. 809 ; ‘Jacz. Fungi Rossiae 126. 
15. Ceriomyces hemichrysus (Berk. & Curt.) Murrill, 
Mycologia 1: 148. 1909. 
Boletus hemichrysus Berk. & Curt. Ann. Mag. Nat. Hist. 11.12: 429. 1853.—Grevillea 1: 35. 1872. 
Pileus convex, becoming plane or slightly depressed, 3-7 cm. broad; surface floccose- 
squamulose, golden-yellow, pulverulent, at times rimose: context thick, yellow, sometimes 
slightly changing to blue when wounded; tubes adnate or decurrent, yellow, becoming 
reddish-brown, mouths large, angular: spores oblong-ellipsoid, smooth, pale yellowish- 
brown, 7-9 X 2-34: stipe short, irregular, tapering below, yellowish-pulverulent, tinged 
with red, yellow within, 3 cm. long, 0.5~1 cm. thick. 
TYPE LOCALITY: South Carolina. ; ; 
HABITAT: On roots or stumps of species of pine. . 
DISTRIBUTION: New York, New Jersey, North Carolina, South Carolina, and Alabama. 
16. Ceriomyces eximius (Peck) Murrill, Mycologia 1: 148. 1909. 
Boletus robustus Frost, Bull. Buffalo Soc. Nat. Sci. 2: 104. 1874. Not &. robusius Fries, 1851. 
Bolétus eximius Peck, Jour. Myc. 3: 54. 1887. 
Pileus thick, compact, globose when young, becoming convex at maturity, 8-20 cm. 
broad ; surface dry, smooth, subglabrous, slightly viscid when wet, purplish-brown, smoky- 
