430 MurrRILL: POLYPORACEAE OF NortTH AMERICA 
8. Scutiger radicatus (Schw.) 
Polyporus radicatus Schw. Proc. Acad. Sci. Phila. 4: 155. 
1834. 
Polyporus Morgani Peck, Rep. N. Y. State Mus. 32: 34. 
1879. ; 
Polyporus Kansensis Ell. & Barth. Erythea, 4: 1. 1896. . 
Exsicc.: Ohio, Lloyd, Morgan; Indiana, Underwood ; New 
York, Overacker ; Canada, Dearness, Macoun ; Kansas, Barthol- 
omew. 
This species is found from September to November in woody 
earth or on much-decayed wood about stumps or dead trunks. It 
is large and conspicuous and is quite easily recognized by its 
brown cap, large pores and long stipe, which is black and radicate 
at the base. The species ranges from Pennsylvania north to 
Canada and west to Ohio and Kansas, where it has been twice 
renamed. A specimen from Washington agrees with this plant 
in many respects, but has a darker, rougher pileus and firmer sub- 
stance, with some differences in pore-structure. I hesitate, how- 
ever, to describe it as new without more material, since S. radicatus 
is somewhat variable even in its type locality. 
g. Scutiger subradicatus sp. nov. 
A rather large thin plant with light brown almost glabrous 
surface, small white serrated tubes and short black stipe. Pileus 
irregular in outline, convex to plane, 12 x g X 0.5 cm. ; surface 
fibrillose, drab-colored to isabelline, margin very thin, inflexed 
when young, irregularly undulate at maturity : context fleshy- 
tough, 1-7 mm. thick, pure milk-white even when dry ; tubes 
mere areoles at first, short and small at maturity, scarcely 1 mm. 
in length, 3-4 toa mm., decurrent to the blackened part of the 
stipe, white, yellowish when dry, mouths polygonal, regular, at 
length much elongated by confluence or otherwise irregular, edges 
thin, toothed or fimbriate when mature : spores ovate to ellipsoidal, 
smooth, hyaline, not abundant, 3-4 x 5-7 »: stipe short, thick, 
central, tapering and attached at the base, sooty-black up to the 
pores, 4 X 2.5 cm.; context milk-white, firm, fleshy-tough, sut- 
face minutely tomentose, rugose-reticulate when dry. 
Two young plants of this species were collected by Dearness at 
London, Canada, in September, 1896, and a finely developed plant 
was recently found in New York by Mrs. M. L. Overacker. The 
