Parr 2, 1908] POLYPORACEAE 99 
12. Fomes Laricis (Jacq.) Murrill, Bull. Torrey 
Club 30: 230. 1903. 
Boletus Laricis Jacq. Misc. Austr. 1: 164. 1778. 
Boletus officinalis Vill. Hist. Pl, Dauph. 3: 1041. 1789. 
Boletus purgans Pers. Syn. Fung. 531. 1801. 
Polyporus officinalis Fries, Syst. Myc. 1: 365. 1821. 
Fomes albogriseus Peck, Bull. Torrey Club 30: 97. 1903. (Type from Michigan.) 
Pileus firm, at length fragile, ungulate to cylindrical, 3-8 X 5-10 4-20 cm.; surface 
anoderm, powdery, white or slightly yellowish, concentrically sulcate, becoming slightly 
encrusted, tuberculose and rimose; margin obtuse, concolorous: context soft, tough, at 
length friable, chalk-white or slightly yellowish, very bitter, with the odor of fresh meal, 
1-3 cm. thick; tubes evenly stratified, concolorous, 5-10 mm. long each season, mouths 
circular to angular, 3-4 to a mwy.., edges thin, fragile, white, becoming discolored and 
lacerate, wearing away with age: spores ovoid, smooth, hyaline, 4X5; hyphae 5.4; 
cystidia none. 
TYPE LOCALITY: Austria. 
HasiraT: In Europe, on living larch; in America, on living larch, pine and spruce. 
DISTRIBUTION : Michigan, Montana, California, and British Columbia ; also in Europe and Asia. 
ILLUSTRATIONS: Jacq. Misc. Austr. 1: 7. 20-21; Bull. Herb. Fr. pi. 296. 
13. Fomes rubritinctus Murrill, Bull. Torrey 
Club 30: 232. 1903. 
A large perennial plant of many layers, the upper partly dead and discolored, the 
lower smooth, light-colored and anoderm, with large ‘pores, which become dark-red when 
bruised. Pileus corky to woody, dimidiate, convex, 4-12 < 5-15 3-10 cm.; surface 
anoderm, smooth, velvety to the touch, white or pallid, becoming dark-brown and rough- 
ened with age; margin obtuse, sterile, concolorous: context corky, becoming woody, 
pallid, 1.5 cm. thick; tubes unevenly stratified, the layers separated by unusually thick 
cushions of context, 0.5-1 cm. long each season, 2 toa mm., isabelline within, becoming 
umbrinous in the older layers, mouths subcircular or polygonal, edges thin, isabelline, 
becoming dark-red when bruised: spores ovoid to globose, 5-7 long, smooth, hyaline, 
wall of medium thickness; hyphae hyaline. 
TYPE LOCALITY: Nicaragua. 
HasBitat: Dead trunks. . 
DISTRIBUTION : Known only from the type locality. 
14. Fomes populinus (Schum.) Cooke, 
Grevillea 14: 20. 1885. 
Boletus populinus Schum. Enum. Pl. Saell. 2: 384. 1803. 
Poria obducens Pers, Myc. Eur. 2: 104, 1825. 
Polyporus connatus Weinm. Fl. Ross. 332. 1836.—Weinm. En. Stirp. Petrop. 208. 1837. Not 
Polyporus connatus Schw. 1832. 
Polyporus connatus Fries, Epicr. Myc. 472. 1838. 
Fomes connatus Gill. Champ. Fr.1: 684. 1878. 
Pileus corky to woody, effused-reflexed, rarely applanate, 2-4>< 5-10 1-3 cm.; surface 
anoderm, velvety, white or yellowish, usually overgrown with moss or otherwise disfigured 
with age; margin acute, slightly deflexed, concolorous, blackish where bruised, becoming 
thicker with age: context punky to corky, white to ochroleucous, 3-8 mm. thick; tubes 
very distinctly stratified, 1-2 mm. long each season, concolorous, with a resinous Tee 
mouths subcircular to angular, minute, 5-6 to a mm., edges thin, uneven, white to 
cremeous, glistening : sports globose, thin-walled, byaline: smooth, 3-4 . 
TYPE LOCALITY: Island of ZeaJand, Denmark. 
HABITAT: Wounds on trunks df living maple, poplar, linden, beech, and a few other decid- 
ter: Canada to Florida and west to Missouri. 
ILLUSTRATIONS: Fries, Ic. Hymen. p/. 785. f.2; Gill. Champ. Fr. pl. 4 
EXSICCATI: Rab. Fungi Eut, 1410; Sydow, Myc, Mar. 2302, 1710 ; Bike, “N. Am. Fungi 9/7 ; 
Thiim. Myc. Univ. 407. 4 
