Murrill: Polvporaceae of North America 427 



6. Tubes entire, becoming reddislibrown on drying, context ochraceous and pileus 



and stipe reddislibrown in herbarium sp<-'cimens. 6. .V. taeruUoporus. 



Tubes lacerate, fading to grayish-brown or dirty white, context nearly white, pileus 



and stipe dull smoky-brown when dry. 7. S. holocyancus. 



7. Stipe black and rooting. 8. 

 Stipe neither black nor rooting. 9. 



8. Pileus smoky-brown, subtomentose, margin ihiri, intlexed, context white, lubes 



regular, polygonal, entire, 2 mm. long, 0.5 mm. in diameter, stipe cylindrical, 

 light-brown above, black and rooting below, spores white, elliptical, 7X5/'- 



8. S. radicatus. 



Pileus drab-colored, nearly glabrous, margin thin, indexed when young, context 



milk-white even wlien dry, tubes white, irregular, toothed, I mm. long, 0.25 



mm. in diameter, stipe short, sooty-black as far as the decurrent tubes, attached 



to buried wood, spores white, 3-4 X 5-7^- 9- S. sitbradicalus. 



9. Pileus gray, glabrous or nearly so, margin very thin, context rosy-gray, soft, fleshy, 



thin when drj', tubes small, 0.25-0.5 mm., unequal, decurrent, stipe short, 



concolorous. 10. S. grisens. 



Pileus brown. lo. 



10. Stipe dark purple, very thick, pileus fulvous-brown, purplish at times, clothed with 

 short tomentum, margin very obtuse, context reddish beneath the cuticle, marked 

 when dry with a black concentric line limiting growth, tubes white, 2 to a mm. 



II. S. petsicivus. 



Stipe yellowish-brown, usually excentric, plants caespitose, pileus yellowish-brown, 



pruinose, margin thin, context rose-tinted when dry, dark red next to the tubes, 



which are small, 1-3 X 0.3 mm., decurrent, rose-colored when dry, the edges 



fimbriate. 12. S. Whiteae. 



I. Scutiger Ellisii (Berk.) 



/'<:^/>y><?rwi- £7/w// Berk. Grevillea, 7 : 5. 1878. 



Poly poms flavosquaniosiis Underw. Bull. Torrey Club, 24 : 84. 

 1897. 



This plant was first collected by Ellis in low woods near New- 

 field, New Jersey. In 1886 only two specimens of it were known 

 to Ellis, the one just mentioned and one collected in South Caro- 

 lina by Ravenel. In 1897 it was found in Alabama by Mrs. 

 Earle and redescribed by Underwood as P. flavosquavtosus. The 

 specimen thus described was growing on clayey soil in pine woods 

 and w-as large and of advanced age, for it was in February that it 

 was found. Very young plants of this species were collected in 

 the same locality by Bradford in December, 1900, which measured 

 over three inches across, emitting when fresh a "strong unpleasant 

 odor." The indications are, judging from the meager knowledge 

 at our command, that this attractive species is at home in the gulf 

 states and grows but sparingly above the Carolinas. 



