[Vor. 1 
142 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
0-3 x 2-6 x 0.1-0.3 cm., coriaceous when fresh, coriaceous or 
rigid when dry, cinereous to yellowish or slightly brownish, 
hirsute to hispid, usually zonate, sometimes with multicolored 
zones, margin very thin and acute; context light umber, fibrous, 
0.5-3 mm. thick; tubes not more than 1 mm. long, the mouths 
white or brownish, circular to somewhat angular, averaging 2-3 
to а mm., the walls rather thin but entire. 
On dead wood. Not common. 
Distinguished from all of its allies in the hirsute or hispid 
pubescence of the pileus. The pileus is thin and coriaceous 
and more nearly resembles the thin coriaceous species in Poly- 
porus. 
7. T. Peckii Kalchbr. Bot. Gaz. 6:274. 1881. 
Plants annual, sessile or effused-reflexed; pileus dimidiate, 
1.5-6 x 2.5-12 x 0.5-2 em., somewhat coriaceous when fresh, 
firm and rigid when dry, yellowish brown or reddish brown, 
densely hirsute or hispid, concentrically sulcate at times, margin 
thick or thin, acute; context light brown, fibrous, soft and spongy 
to firm and woody, 1-10 mm. thick; tubes 2-10 mm. long, the 
mouths dull brown or grayish brown, angular to irregular, 
averaging about 1 to a mm.; spores (teste Murrill) oblong or 
slightly curved, smooth, hyaline, 11-13 x 3.5-4 y. 
On dead wood of Populus, Liriodendron, and Salix. Sep- 
tember to December. Frequent. 
Easily recognized by the densely hirsute or hispid pubescence, 
the large pores, and the habitat. In Europe the species is known 
as T. hispida Fries. 
8. T. Pini Thore ex Fries, Epicr. Syst. Myc. 489. 1838. 
Boletus Pini 'Thore, Essai Chlor. Dep. Land. 487. 1803. 
Plants perennial, sessile or effused-reflexed; pileus dimidiate, 
often ungulate, 3-15 x 5-20 x 1-6 cm., woody, yellowish brown 
to reddish brown or becoming black, the growing margin hir- 
sute to tomentose, glabrous behind, zonate or concentrically 
suleate, margin usually thick and somewhat obtuse; context 
yellowish brown to rusty brown, corky to woody, not more than 
5 mm. thick; tubes 2-7 mm. long, indistinctly stratified, the 
mouths usually golden brown, subcircular to daedaloid and laby- 
rinthiform; spores (teste Bresadola) hyaline, subglobose, 
5-6 x 4-5 y. 
