PaRT 1, 1907] POLYPORACEAK 33 
fragile, dark-bay throughcut in dried specimens, edges thin, lacerate, fimbriate: spores 
smooth, hyaline. 
Type collected near Cutler Point, Florida, on pine trunks, November 13, 1903, /. K. Small & 
J.J. Carter 1327. 
DISTRIBUTION: Florida and Louisiana. 
. 
8. Tyromyces Spraguei (Berk. & Curt.) Murrill. 
Polyporus Spraguez Berk. & Curt. Grevillea 1: 50. 1872. : 
Polyporus sordidus Cooke, Grevillea 15: 20. 1886. (Type from the eastern United States.) 
Pileus subimbricate, dimidiate or flabelliform, broadly sessile or attenuate behind, con- 
vex, fleshy-tough and watery to rigid and fragile when dry, 4-7 * 5-10 X 1-2 cm.; surface 
at first milk-white, finely tomentose to glabrous, slightly tuberculose, azonate, sodden, 
containing depressions filled with exuded water, becoming discolored and roughened and 
often decaying, especially in damp weather, with a strong and disagreeable odor ; margin 
undulate or slightly lobed, acute, usually discolored, sometimes smoky-black, inflexed when 
dry: context white, zonate, cheesy when fresh, rigid and somewhat fragile when dry; 
tubes small, white to yellowish within, 3-8 mm. long, mouths somewhat uneven, angular, 
3-4 toa mm., edges white to yellowish, thin, entire: spores ellipsoidal, smooth, hyaline, 
6X 4p. 
TYPE LOCALITY: New England. 
HABITAT; Dead stumps or trunks of chestnut and oak. 
DISTRIBUTION : New Hampshire to North Carolina and west to Missouri and Iowa. 
9. Tyromyces tiliophila Murrill, sp. nov. 
Pileus large, convex above, concave below, cheesy when fresh, firm and fragile when 
dry, attached by an attenuate base, dimidiate to flabelliform, 8 12 x 1-1.5 cm.; surface 
radiate-rugose, slightly plicate, tubercular, subglabrous, white to ochraceous, marked with 
pale-latericeous ; margin thick, fertile, concolorous, undulate: context homogeneous, 
white, cheesy to fragile, about 1 cm. thick; tubes nearly 1 cm. long, white to slightly 
yellowish, very fragile when dry, collapsing and wearing away with age, mouths minute, 
5 to a mm., subcircular, white to cremeous, slightly discolored with age, edges thin, 
friable, fimbriate-dentate. 
Type collected at Ottawa, Canada, on Tilia americana, October, 1883, 7. Macoun. 
DISTRIBUTION : Known only from the type locality. 
10. Tyromyces cerifluus (Berk. & Curt.) Murrill. 
Polyporus cerifluus (Berk. & Curt.) Grevillea 1: 50. 1872. 
Pileus sessile, dimidiate, narrowly attached, laterally confluent, fleshy-tough to rigid, 
thin, 1.5-2.5 2-5 & 0.2-0.4 cm.; surface white to ochraceous, latericeous and polished in 
spots, radiate-rugose, sulcate, resinous-guttate, floccose-tomentose; margin thin, inflexed, 
undulate, easily bruised: context very thin, white, fibrous, fragile when dry, less than 1 
mm. thick ; hymenium uneven, cribrose, especially behind; tubes slender, white to dis- 
colored, 2-3 mm. long, mouths angular, 4 to a mm., white to yellowish-discolored, edges 
thin, fimbriate-dentate to sharply lacerate, presenting to the unaided eye the appearance of 
a Hydnum: spores smooth, hyaline, globose, 4“; hyphae 5; cystidia none. 
TYPE LOCALITY: South Carolina. 
HABITAT: Rotten logs in swamps. 
DISTRIBUTION: South Carolina. 
11. Tyromyces versicutis (Berk. & Curt.) Murrill. 
Polyporus versicutis Berk. & Curt. Jour. Linn. Soc. 10: 308. 1868. 
Pileus cespitose-imbricate, fleshy-tough, rigid when dry, sessile, dimidiate, decurrent 
behind, 0.5~1.5 & 3-4 & 0.2-0.4 cm.; surface rugose or tuberculose, finely tomentose, 
resinous-guttate, ochraceous to latericeous when dry; margin somewhat obtuse, sterile: 
context fleshy to rigid, pallid, 2 mm. thick; tubes 1-2 mm. long, pallid to umbrinous, 
mouths circular to slightly angular, minute, 6 to a mm., edges thin, subentire, pallid to 
umbrinous: spores not examined. 
TYPE LOCALITY: Cuba. 
HasitaT: Dead wood. 
DISTRIBUTION: Known only from the type locality. 
