Part 3, 1910] BOLETACEAE 147 
fleshy; hymenium strongly concave, pure creamy-white, tubes adnate, rather short, small, 
angular, thin-walled, edges becoming lacerate: spores oblong-ellipsoid, smooth, hyaline, 
2-guttulate, 9-11 3-4: stipe central, thick, tapering downward, 2.5 cm. long, 3 cm. 
thick above, 1.5 cm. thick at the base, smooth and glabrous below, closely and conspicu- 
ously reticulate above, fieshy, solid. 
TYPE LOCALITY: Coliblanco, Costa Rica. 
Hasitrat: Among mosses on a rotten log. 
DISTRIBUTION : Known only from the type locality. 
34. Ceriomyces miniato-olivaceus (Frost) Murrill, 
Mycologia 1: 152. 1909. 
Boletus miniato-olivaceus Frost, Bull. Buffalo Soc. Nat. Sci. 2: 101. 1874. 
Boletus sensibilis Peck, Ann. Rep. N. Y. State Mus. 32: 33. 1880. (Type from New York.) 
Boletus glabellus Peck, Ann. Rep. N. Y. State Mus. 41: 76. 1888. (Type from New York.) 
Pileus firm, convex, becoming nearly plane and somewhat spongy with age, cespitose, 
5-15 cm. broad ; surface finely tomentose to glabrous, sometimes rimose-areolate, vermilion, 
becoming olivaceous or ochraceous-red, changing to blue when handled; margin acute, 
slightly exceeding the pores: context pale-yellow, changing immediately to blue when 
wounded, mild or slightly unpleasant to the taste, said to be poisonous; tubes adnate or 
subdecurrent, slightly depressed, bright lemon-yellow tinged with green, becoming brown- 
ish-yellow with age, changing to blue when wounded, mouths subangular, of medium size: 
spores oblong-ellipsoid, smooth, yellowish-brown, 10-13 4-6: stipe equal or enlarged 
above or below, pale-yellow with pink markings, especially near the base, glabrous, faintly 
reticulate at the top, solid, yellow within, 6-10 cm. long, 0.5~-1.5 cm. thick. 
TYPE LOCALITY: Brattleboro, Vermont. 
HasitTaT: Borders of woods or open woods. 
DISTRIBUTION : Maine to North Carolina. 
ILLUSTRATION: Palmer, Mushrooms //.7, f. 4 (?). 
35. Ceriomyces bicolor (Peck) Murrill, Mycologia 1: 152. 1909. 
Boletus bicolor Peck, Ann. Rep. N. Y. State Mus. 24: 78. 1872. 
Boletus rubeus Frost, Bull. Buffalo Soc. Nat. Sci. 2: 102. 1874. (Type from Vermont.) 
Boletus squamulosus Ellis, Bull. Torrey Club 6: 77. 1876. (Type from New Jersey.) Not 2. 
sguamulosus Rostk. 
Boletus dichrous Ellis, Bull. Torrey Club 6: 109. 1876. 
Pileus somewhat irregular, firm, convex, 5-10 cm. broad; surface dry, glabrous or 
finely tomentose or squamulose, at times rimose-areolate with age, apple-red or purplish- 
red, often fading or becoming stained with yellow when old; margin irregular, sometimes 
upturned : context flavous, changing slowly to blue at times when wounded, then back to 
flavous, taste mild ; tubes short, adnate, nearly plane, flavous when young, becoming ochra- 
ceous with age, changing slowly to blue or greenish-blue when wounded, mouths angular, 
of medium size, 2-3 toa mm.: spores fusiform, smooth, pale ochraceous-brown, 10-12 
4-5: stipe nearly equal, firm, solid, dark, usually yellow and sometimes slightly reticu- 
lated at the top, changing to greenish-blue when bruised, smooth, nearly glabrous, showing 
dark dots under a lens, solid, flavous within, changing slowly to blue, 4-10 cm. long, 0.7-1.5 
cm. thick. 
TYPE LOCALITY: Sandlake, New York. 
HABITAT: Open woods. : 
DISTRIBUTION : New England to North Carolina and west to Ohio and Kentucky. 
ILLUSTRATIONS: Ann. Rep. N. Y. State Mus. 24: pi. 2, f. 5-8; Bull. N. Y. State Mus. 10: p/. 
81, f. 6-11; Mcilv. Am. Fungi pi. 117, f. 1, 2. 
36. Ceriomyces pallidus (Frost) Murrill, Mycologia 1: 152. 1909. 
Boletus pallidus Frost, Bull. Buffalo Soc, Nat. Sci. 2: 105. 1874. 
Pileus circular, convex to plane or depressed, 5-12 cm. broad; surface smooth, dry, 
glabrous, rather soft to the touch, pallid or gtayish-brown, slightly tinged with red at 
times; margin even, regular, rather thin, fertile, concolorous or paler: context white, be- 
coming slightly bluish when wounded; tubes nearly adnate, plane or depressed, rarely 
becoming free, of medium length, very pale-yellowish, becoming dark-flavous with age 
