1914) 
OVERHOLTS—THE РОГУРОВАСЕЖ OF OHIO - 143 
On coniferous wood. Rare. 
The bright color of the hymenium usually contrasts strongly 
with the darker colors of the upper surface. Р. piceinus Peck 
(=Trametes Abietis Karst.), which by some is regarded as a 
form of T. Pini, has never, to the writer's knowledge, been 
collected within the state. 
SPECIES DOUBTFUL OR EXCLUDED 
T. nivosus Berk. was erroneously reported from Ohio by 
Morgan. It is a tropical and subtropical species. 
DAEDALEA Pers. ex. Fries, 
Syst. Мус. т: 331. 1821; Pers. Syn. Fung. 499. 1801. 
Plants annual or rarely reviving for two or three years, ses- 
sile or effused-reflexed, growing on wood; pileus coriaceous to 
corky in texture, not encrusted; context white or whitish, 
fibrous or corky; hymenium typically daedaloid or labyrinthi- 
form, but sometimes poroid, irpiciform or lamellate; spores 
white. 
KEY TO THE SPECIES 
Pileus small, thin and coriaceous, hirsute or villous; hymenium at first sin- 
uous and dedaloid but soon breaking up into teeth....... 1. D. unicolor 
Pileus rather large and thick, corky, minutely velvety or glabrous; hyme- 
nium poroid, dedaloid, or somewhat lamellate but never breaking up 
iio ВИИ аа ое 224 000 2 
2. Mouths of the tubes less than 1 mm. Ьгоай...................... 2. D. ambigua 
2. Mouths of the tubes more than 1 mm. Әтодай........................... 3 
3. Pileus less than 1.5 cm. thick; walls of the tubes thin; plant found abun- 
БЕР OR KUUS CQ OPER CORNER UESTRE. 3. D. confragosa 
3. Pileus more than 1.5 em. thick; walls of the tubes thick; plant growing 
ба Quercus and Castanen. ......... Leurs ODER 4. D. quercina 
I. D. unicolor Bull. ex Fries, Syst. Myc. т: 336. 1821. 
Boletus unicolor Bull. Herb. Fr. pl. 408. 1788. 
Plants annual or sometimes the marginal hyphe reviving and 
continuing growth the second year, sessile, or effused-reflexed, 
imbricate; pileus dimidiate to flabelliform, 0.5-5 x 2-8 x 0.2- 
0.5 em., eoriaceous, white to cinereous or light brown, some- 
times green from a covering of alge, villous or hirsute, zonate ог 
concentrically furrowed, margin thin, acute, sterile below; con- 
text white or pallid, fibrous, less than 1 mm. thick; tubes 1-4 
mm. long, the mouths white to cinereous or umber, at first 
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