44 NORTH AMERICAN FLORA (VoLtuME 9 
mouths regular, nearly even, 6 to a mm., edges thin, subentire, white to isabelline or 
avellaneous, glistening, umbrinous with age: spores smooth, hyaline. 
Type collected in Louisiana, on dead deciduous wood, Jartuary, 1887, 4. B. Langlois. 
DISTRIBUTION : Missouri, Florida, Mississippi, and Louisiana. 
7. Trametes havannensis (Berk. & Curt.) Murrill. 
Polyporus havannensis Berk. & Curt. Jour. Linn. Soc. 10: 310. 1868. 
Pileus simple or subimbricate, dimidiate, convex above, plane or concave below, sessile 
or umbonate-sessile, 2-3 * 4-5 0.5-1 cm.; surface zonate, smooth, sometimes sulcate, 
finely pubescent to glabrous, ochraceous to subfulvous; margin sterile, pubescent, pallid, 
acute but rather thick: context firm, corky, white, homogeneous, 3-8 mm. thick ; tubes 
slender, 3-5 mm. long, white within, mouths circular, 4-5 to a mm., edges thick, white, 
entire, becoming thinner, glistening and subfulvous: spores smooth, hyaline. 
TYPE LOCALITY: Cuba. 
HapitaT: Dead wood. 
DISTRIBUTION: Cuba; St. Thomas. 
8. Trametes lignea Murrill, sp. nov. 
Pileus ungulate, dimidiate, sessile, somewhat laterally connate, slightly decurrent, 
3>6X3cm.; surface smooth, anoderm, azonate, glabrous, white to isabelline ; margin 
thick, obtuse, entire, concolorous: context homogeneous, woody, white, 2.5 em. thick ; 
tubes 5 mm. long, white within, mouths angular, irregular, averaging 3 to a mm., edges 
rather thin, entire, white to slightly discolored: spores smooth, hyaline. 
Type collected in Nicaragua, on dead timber, in 1891-2, C. L. Smith. 
DISTRIBUTION : Known only from the type locality. 
31. PIPTOPORUS Karst. Rev. Myc. 3°: 17. 1881. 
Hymenophore annual, epixylous, umbonate-sessile; surface smooth, azonate, pellicu- 
lose: context white, fleshy-tough; hymenium at length separating smoothly from the 
context, tubes white, thick-walled: spores smooth, cylindrical, hyaline. 
Type species, Boletus betulinus Bull. 
1. Piptoporus suberosus (1,.) Murrill, Jour. Myc. 9: 94. 1903. 
Boletus suberosus l,. Sp. Pl. 1176. 1753. 
Boletus betulinus Bull. Herb. Fr. p/. 312. 1786. 
Piptoporus betulinus Karst. Rev. Myc. 39: 17. 1881. 
Pileus fleshy to corky, compressed-ungulate, convex above, plane below, attached by 
a short umbo behind, varying to bell-shaped when hanging from horizontal trunks, 5-30 
X 5-20 & 2-5 cm.; surface smoky, covered with a thin, separating pellicle, glabrous, devoid 
of markings, cracking with age; margin velvety, concolorous, obtuse, projecting beyond 
the hymenium nearly a centimeter: context fleshy-tough, elastic, homogeneous, 3 cm. 
thick, milk-white; tubes 0.5 cm. long, 2-3 to a mm., sodden-white, separated from the 
context by a thin pink layer, mouths very irregular, dissepiments thicker than the pores, 
obtuse, entire, crumbling away in age, leaving the smooth, white context: spores white, 
cylindrical, curved, 4-5 # in length. 
TYPE LOCALITY: Sweden. 
HABITAT: Dead or decaying trunks of species of birch. 
DISTRIBUTION : Northern parts of North America, Europe and Asia; extends south in the 
United States to New Jersey. 
ILLUSTRATIONS: Bull. Herb. Fr. loc. cit. ; Sow. Engl. Fungi J. 212. 
Exsiccati: Ellis & Ev. N. Am. Fungi 1691 ; Jacz. Fungi Rossiae 76; Thiim. Myc. Univ. 906; 
Krieger, Fungi Sax. 907 ; Romell, Fungi Scand. 70; Allesch. & Schn. Fungi Bavar. 747. 
32. EARLIELLA Murrill, Bull. Torrey Club 32: 478. 1905. 
Hymenophore medium to large, annual, epixylous, semi-resupinate, thin and dry but 
rigid; surface pelliculose, glabrous, zonate, more or less reddish-brown in color: context 
white, coriaceous, zonate; hymenium flesh-colored, tubes medium, irregular, becoming 
thin-walled: spores smooth, hyaline. 
Type species, Zarliella cubensis Murrill. 
