Part 1, 1907] POLYPORACEAE 3 
forms and species in a few genera connect this group with the Polyporeae ; while the ten- 
dency at times to produce a daedaleoid hymenium, shown especially in Porodaedalea, con- 
nects it with the Daedaleae. 
Tubes at first concealed by’a volva. 64. CRYPTOPORUS. 
Tubes free from the first. 
Surface of hymenophore covered with reddish-brown varnish ; con- 
text punky to corky. 73. GANODERMA. 
Surface of hymenophore not as above. 
Hymenophore distinctly stipitate. 72, AMAURODERMA. 
Hymenophore sessile or subsessile. 
Context white, flesh-colored or wood-colored. 65. FomMEs. 
Context olivaceous. 66. FOMITELLA. 
Context brown, latericeous, dark-purple or black. 
Surface not encrusted ; or, if so, context woody. 
Context brown or latericeous. 
Hymenium porose. 67. PYROPOLYPORUS. 
Hymenium porose-daedateoid. 68. PORODAEDALEA, 
Context dark-purple or black. 69. NIGROFOMES. 
Surface encrusted ; context punky. 
Hymenophore subsessile, cespitose. 70. GLOBIFOMES, 
Hymenophore sessile, simple or imbricate. 71. ELFVINGIA. - 
Tribe 4. DAEDALEAE. Hymenium annual, very rarely perennial, coriaceous to woody, variable in 
size; surface anoderm, hairy or glabrous, variously marked: context white or brown, fibrous, 
woody or punky; hymenium exceedingly variable, normally labyrinthiform or lamelloid, but 
often poroid or even irpiciform, never stratified: spores smooth, brown or hyaline. Poroid 
and irpiciform plants of this group are difficult to separate from certain species of Polyporeae ; 
forms of Daedalea confragosa in particular being troublesome to the beginner. On the other 
hand, there is little to cause confusion between this group and the Fomiteae, if we except the 
single distinctly perennial species of Daedalea and the daedaleoid forms of Porodaedalea. 
Context white or wood-colored. 
Hymenium labyrinthiform, often becoming lamellate or irpiciform. 
Hymenium very soon becoming irpiciform. ” 74, CERRENA. 
Hymenium rarely becoming irpiciform and then not until maturity. 75. DAEDALEA. 
Hymenium lamellate from the first, not becoming irpiciform. 76. LENZITES. 
Context brown. 
Hymenophote sessile, furrows radiate. 77. GLOEOPHYLLUM. 
Hymenophore centrally stipitate, furrows concentric. 78. CYCLOPORUS. 
13. HYDNOPORIA Murrill, gen. nov. 
Hymenophore resupinate, epixylous, annual: context very thin, brown; hymenium 
soon becoming irpiciform or hydnoid, tubes brown, thin-walled: spores smooth, hyaline ; 
hyphae brown; cystidia present. 
Type species, Sistotrema fuscescens Schw. 
1. Hydnoporia fuscescens (Schw.) Murrill, 
Sistotrema fuscescens Schw. Schr. Nat. Ges. Leipzig 1: 102. 1822. . 
Irpex cinnamomeus Fries, Epicr. Myc. 524. 1838. (Type from North America.) 
Broadly effused, inseparable, irregular, coriaceous, 1-2 mm. thick ; margin thin, adnate, 
lobed, subbyssoid, sterile, ferruginous: context very thin, tough, ferruginous to fulvous ; 
hymenium uneven, hydnoid, ferruginous to fulvous, at length umbrinous; tubes uneven, 
0.5-2 mm. long, punctiform at the margin, but soon becoming irpiciform or hydnoid, teeth 
hollow, pruinose, nearly conical at first, becoming elongate, flattened and incised with 
age: spores smooth, hyaline; hyphae ferruginous, 2-4 »; cystidia fairly abundant, long, 
cuspidate, tapering at both ends, fulvous, 50-80 < 10-15 z. 
Type LOCALITY : North Carolina. 
HasitaTt: Dead deciduous wood. 
DISTRIBUTION: New York to Alabama and west to Wisconsin and Texas. 
ExsiccaTr: Rav. Fungi Car. 1: 27; Rab.-Wint. Fungi Eur. 2935; Shear, N. Y. Fungi 309, 
Ellis, N. Am. Fungi 104; Ellis & Ev. Fungi Columb. 30. 
14. FUSCOPORIA Murrill, gen. nov. 
Hymenophore resupinate, epixylous, thin, effused, annual: context thin, brown; tubes 
not stratified, brown, short, usually regular, small and thin-walled: spores globose to ovoid, 
smooth, hyaline; cystidia nearly always present. 
Type species, Boletus ferruginosus Schrad. 
Tubes large, 2-3 to a mm., hexagonal or irregular, sometimes becoming daedaleoid. 
Mouths hexagonal; cystidia none. i 1. F. carbénaria, 
Mouths irregular, often daedaleoid ; cystidia abundant. 2. &. viticola, 
