Part 1, 1907]. POLYPORACEAE 29 
ting into sharp teeth, which wear away with age: spores globose, smooth, hyaline, 3-54; 
hyphae hyaline, 3.5 #. 
Type collected in British Columbia, on the bark of ‘‘ giant cedar,’’ August, 1887, John Macoun 60. 
DISTRIBUTION: Known only from the type locality. 
3. Coriolellus Sequoiae (Copeland) Murrill. 
Trametes Sequotae Copeland, Ann. Myc. 2: 507. 1904. 
Pileus spongy to corky, rather soft, very variable in shape, effused, confluent, resupi- 
nate or narrowly reflexed, imbricate, the reflexed portion glabrous, cinereous-fuscous: con- 
text very thin, fuscous; tubes slender, cinereous, 5-7 mm. long, mouths subcircular to 
angular, cinereous-umbrinous, edges thin, entire to dentate: spores not examined. 
TYPE LOCALITY: Woodside, California. 
HABITAT: On burnt wood of Seguoia sempervirens. 
DISTRIBUTION : Known only from the type locality. 
4. Coriolellus serialis (Fries) Murrill. 
Polyporus serialis Fries, Syst. Myc. 1: 370. 1821. 
Polyporus scalaris Pers. Myc. Eur. 2: 90. 1825. (Type from Switzerland.) 
Trametss serialis Fries, Hymen. Eur. ed. 2, 585. 1874. 
Polyporus varitiformis Peck, Ann. Rep. N. Y. State Mus. 42: 26.1889. (Type from New York.) 
Pileus corky to woody, extensively effused, resupinate or shortly reflexed, seriately 
elongate, laterally connate, the reflexed portion very narrow, 0-1 \ 1-1.5 & 0.3-0.5 cm. ; 
surface uneven, subzonate, appressed-tomentose to strigose, hoary-fulvous to latericeous- 
fulvous ; margin thick, pallid, undulate to very uneven: context white, fibrous, membra- 
nous, less than 1 mm. thick; tubes slender, white, very variable in size and shape, 2-8 mm. 
long, mouths circular to angular or irregular, pure white, becoming pale yellowish-brown 
at times on drying, ahout 3 toa mm., edges rather thick, firm, entire, becoming thinner 
and dentate: spores smooth, oblong, hyaline, 6-8 & 2.5-3 4. 
TYPE LOCALITY: Sweden. 
HABITAT: On dead coniferous and deciduous wood. 
DISTRIBUTION : Northern hemisphere. 
ILLUSTRATION : Fries, Ic. Hymen. pl. 191, f. 2. 
DouBTFUL SPECIES 
Polyporus perpusilius Pers.; Lév. Ann. Sci. Nat. III. 2: 191. 1844. Fomes perpusillus 
Cooke, Grevillea 14: 19. 1885. The specimen originally described by Persoon is at 
Leiden, but it does not give a definite clue to the identity of this species. Léveillé prob- 
ably had specimens of Zrametes ohiensis Berk., which he took for P. perpusillus, 
25. SPONGIPORUS Murrill, Bull. Torrey Club 32: 474. 1905. 
Hymenophore small, annual, epixylous, sessile, dimidiate, pulvinate; surface white, 
anoderm to sv‘: pellicnlose, azonate, soft and elastic: context white, extremely soft and 
spongy throughout; hymenium rigid, somewhat discolored ; tubes large, irregular, thin- 
walled, lacerate : spores smooth, hyaline. 
Type species, Polyporus leucospongia Cooke & Hark. 
Pileus 6-10 cm. broad, surface tomentose to glabrous. 1. S. leucospongia. 
Pileus 1,5-3,cm. broad, surface villose. 2. S. aliocedronensis. 
1. Spongiporus leucospongia (Cooke & Hark.) Murrill, Bull. 
Torrey Club 32: 474. 1905. 
Polyporus leucospongia Cooke & Hark. Grevillea 11: 106. 1883. 
Pileus rather small, sessile, dimidiate, conchate, pulverulent, 2-3 X 6-10 X1.5-2.5cm.; 
surface white, anoderm, very soit and spongy, finely tomentose to glabrous; margin rounded, 
inflexed, sterile, concolorous: context white, extremely soft and spongy, slightly firmer 
next to the tubes with age, 5-20 mm. thick ; tubes large, irregular, 2~4 mm. long, white to 
discolored and slightly resinous in appearance, mouths angular, irregular, about 2 to a 
mm., edges thin, entire to lacerate-dentate: spores smooth, ellipsoidal, hyaline, 75.4. 
