430 MURRILL : POLYPORACEAE OF NoRTH AMERICA 



8. Scutiger radicatus (Schw.) 



Poly poms 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, Lhyd, Morgan ; Indiana, Underwood ; New 

 York, Ovcracker ; Canada, Deariicss, Macon n ; Kansas, Barthol- 



oineiv. 



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 5. radicatus 

 is somewhat variable even in its type locality. 



9. 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 9 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 i mm. 

 in length, 3-4 to a 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 H : 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, sur- 

 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 



