38 NORTH AMERICAN FLORA {VoLUME 9 
Pileus somewhat imbricate, large and spongy, at length indurate, dimidiate, sessile, 
often ungulate, 5-7 10-15 & 3-5 cm.; surface spongy-tomentose, hirtose, azonate, smooth, 
sordid-white to isabelline or fulvous; margin very thick and rounded, sterile, entire, con- 
colorous : context spongy-fibrous, white, indurate with age, especially below, 1-2 em. thick ; 
tubes very long, 2-3 cm., white to isabelline within, mouths large, irregular, often sinuous, 
1-2 mm. broad, edges thin, fimbriate-dentate to slightly lacerate, white to isabelline, at 
length bay and resinous in appearance: spores globose, smooth, hyaline, 6-8“; hyphae 
hyaline, 6; cystidia none. 
TYPE LOCALITY: North Carolina. 
HasitaT: Diseased living trunks of various species of oak; also found on living maples. 
eo ee New Jersey to Alabama and west to Mississippi and Minnesota; also in 
Tr ueeaione : Rep. Mo. Bot. Gard. 16: p/. 13-16 ; Kalehbr. Ic. Hymen. Hung. p/. 34, f. 1 (as 
Polyporus Schulzert), . 
Exsiccatr: Ellis & Ev. N. Am. Fungi 707; Rab.-Wint. Fungi Eur. 3330. 
2. Spongipellis occidentalis Murrill, sp. nov. 
Pileus thick, dimidiate, sessile, subimbricate, convex above, 5-87-10 XK 2-3 cm.; 
surface conspicuously hispid-tomentose, spongy, azonate, smooth or somewhat rugose, 
white to cremeous or isabelline ; margin very thick, rounded, concolorous, fertile: context 
soft, spongy-fibrous, white to slightly yellowish, 1-2 cm. thick; tubes long and slender, 
lcm. long, white to straw-colored within, fulvous in old dried specimens, mouths minute, 
angular, 5 to a mm., edges very thin, white to cremeous, fimbriate-dentate, becoming 
lacerate, collapsing and turning fulvous in old specimens: spores ellipsoid, smooth, hya- 
line, 4-5 & 6-7; hyphae 64; cystidia none. 
Type collected at Ithaca, New York, on a beech log, October 17, 1899, K. M. Wiegand. 
DISTRIBUTION: New York. 
3. Spongipellis borealis (Fries) Pat. Tax. Hymén. 84. 1900. 
Polyporus borealis Fries, Syst. Myc. 1: 366. 1821. 
Pileus sessile, subimbricate, dimidiate to flabelliform, often narrowly attached, spongy 
to corky, very tough, moist and juicy when fresh, 5-8 X 8-12 X 2-4 cm. ; surface uneven, 
soft and spongy, hirtose-tomentose, azonate, white to yellowish ; margin thin, white, entire, 
somewhat discolored on drying: context fibrous-coriaceous above, fibrous-woody below, 
white, 0.5-1.5 cm. thick; tubes 4-8 mm. long, white to pallid within, mouths angular, 
irregular, somewhat radiately elongate, sinuous at-times, 1-2 to a mm., stuffed when 
young, edges thin, white to ochraceous, dentate to lacerate: spores ovoid, smooth, hyaline, 
5-6 X 3-4; hyphae 6-7; cystidia none. 
TYPE LOCALITY: Mountains of Smaland, Sweden, on trunks of A dies. 
Hapitat: Trunks of conifers. 
DISTRIBUTION : Europe and temperate North America. 
ExsiIccaTI: Romell, Fungi Scand. 15 ; Thiim. Fungi Austr. 7707 ; Karst. Finl. Fungi 238. 
4. Spongipellis delectans (Peck) Murrill. 
se tale seca Peck, Bull. Torrey Club 11: 26. 1884.— Morgan, Jour. Cine. Soc. Nat. Hist. 
Pileus simple or subimbricate, sessile, dimidiate, convex or subtriangular, fleshy-fibrous 
to corky, 5X 5-10 X 2-5 cm. ; surface azonate, white to ochraceous-isabelline, uneven, gla- 
brous or slightly floccose-tomentose; margin thin, acute, concolorous, sterile: context soft 
and spongy above, firm and woody below, white, 1 cm. or more thick ; tubes 5-8 mm. long, 
white within, mouths large, subcircular or angular, somewhat irregular, 1-3 toamm., edges 
thin, entire to slightly dentate, white to slightly discolored: spores subglobose to ovoid, 
smooth, thin-walled, hyaline, 5-6 X 7-8“; hyphae 8; cystidia none. 
TYPE LOCALITY: Ohio. 
HasitTatT: Trunks of elm, maple, and other deciduous trees. 
DISTRIBUTION : Ohio. 
ILLUSTRATION : Jour. Cinc. Soc. Nat. Hist. 8: 2. J. 
