Part 3, 1910] BOLETACEAE 157 
1. Pulveroboietus Ravenelii (Berk. & Curt.) Murrill, 
Mycologia 1: 9. 1909. 
Boletus Raveneht Berk, & Curt. Ann. Mag. Nat. Hist. II. 12: 429. 1853. 
Pileus convex or nearly plane, 3-10 cm. broad, 1-3 cm. thick; surface smooth, slightly 
viscid when wet, subfibrillose and pulverulent, becoming glabrous on the disk, isabelline - 
to testaceous or latericeous, the pulverulence being sulphur-yellow ; margin entire, flavous: 
context white or very light-yellow, changing slowly to bluish when wounded; tubes plane 
in mass, adnate, depressed, pale-yellow to umbrinous-olivaceous, changing to greenish-blue 
when injured, mouths of medium size, subcircular or slightly sinuate: spores ellipsoid, 
olive-green when fresh, becoming ochraceous-brown, 10-12 5-64: stipe cylindric, 
equal, clothed and colored like the young pileus, solid, yellow within, not changing to 
blue when wounded, 5-10 cm. long, 0.5-1.3 cm. thick; veil large and conspicuous, bright 
lemon-yellow, remaining attached to the stipe in the form of a slight, evanescent, tomen- 
tose annulus. 
TYPE LOCALITY: South Carolina. 
HABITAT: In deep shade, especially in thickets of Kalmia and Rhododendron. 
DISTRIBUTION: New England to the Gulf of Mexico. 
9. STROBILOMYCES Berk. Outl. Brit. Fungol. 236. 1860. 
Eriocorys Quél. Ench. Fung. 163. 1886. 
Hymenophore annual, terrestrial, centrally stipitate; surface of pileus and stipe black- 
ish and shaggy: context white, at first fleshy, becoming tough; tubes angular, adnate, 
white when young, covered with a floccose veil: spores globose or broadly ellipsoid 
rugulose, blackish-brown: stipe solid, not reticulate. 
Type species, Boletus strobilaceus Scop. 
1. Strobilomyces strobilaceus (Scop.) Berk. Outl. Brit. 
Fungol. 236. 1860. 
Boletus strobilaceus Scop. Anni Hist.-Nat. 4: 148. 1770. 
Boletus strobiliformis Dicks, Pl. Crypt. Brit. 1: 17. 1785. 
Boletus squarrosus Pers. Myc. Eur. 2: 145. 1825. 
Boletus coniferus Pers, Myc. Eur, 2: 146. 1825. 
Boletus siygius Wallr. Fl. Crypt. Germ. 4: 608. 1833. 
Eriocorys strobilacea Quél. Ench. Fung. 163. 1886. 
Pileus hemispheric to expanded, 5-10 cm. broad; surface dry, soft and spongy, 
blackish-umbrinous, adorned with thick, projecting, floccose, squarrose, blackish scales ; 
margin fringed with scales and fragments of the veil: context white or whitish, changing 
to red and then to black when wounded, mild to the taste, edible; tubes adnate, often 
depressed, white or cinereous, changing like the context when wounded, becoming brown 
or blackish with age, mouths large, angular: spores subglobose, asperulate, blackish-brown, 
8-11 long: stipe equal or slightly tapering upward, sulcate-striate at the apex, densely 
floccose-tomentose, brown or blackish below, lighter above, solid, firm, fragile, 6-12 cm. 
long, 1-2 em. thick ; veil dense, cottony, white to grayish, adhering to the margin and to 
the stipe in mature plants. 
TYPE LOCALITY: Carniola. 
HasitaT: Shaded banks in woods. 
DISTRIBUTION : Temperate North America and Europe. 
ILLUSTRATIONS: Pers. Myc. Eur.2: pl. 19; Dicks. Pl. Crypt. Brit.1: £23, f.2; Atk. Stud. 
Am. Fungi pl. 58, f. 173, 174; Gibson, Edible Toadst. f/. 23; Palmer, Mushr. Am. fl. 7, 6; Gill. 
Champ. Fr. £/.79; Sturm, Deuts. Fl. Pilze 5: £2. 38; Bull. N. VY. State Mus. 94: p/. 92, f. 1-6; 
C. G. Lloyd, Phot. 26, 44; Richon & Roze, Atl. Champ. pi. 53. 
Exsiccati: Underw. & Cook, Ilust. Fungi ZZ. 
DOUBTFUL SPECIES 
Strobilomyces coccineus Sacc. Syll. Fung. 6: 50. 1888. (Boletus coccineus Fries, 
Epicr. Myc. 423. 1838. Not 2. coccineus Bull. 1791.) This species, of doubtful affinities 
and doubtful locality, is based upon a brief description and afigure (Piumier, Traité Foug. 
pl. 167, f. A, A). 
