MurriLL: THe PoLtyporacEAE oF NortH AMERICA 607 
Collected by Professor Underwood in Florida. Closely re- 
lated to G. sudcatum, but differing in general appearance, size of 
pores, and in the extent and arrangement of varnish upon the hy- 
menium. A similar coating of varnish exists in G. sudcatum and 
G. pseudoboletus at times, but in neither of these has it been found 
as a broad distinct marginal band. This band is sometimes split 
by the growth of the margin and a zone of pores appears between 
the two laccate portions. Additional material may reveal the ex- 
istence of intermediate forms connecting this species with G. su/- 
catum. 
7. Ganoderma sulcatum sp. nov. 
A large sessile plant without zones, but marked with a few 
conspicuous concentric furrows. Pileus corky, dimidiate, sessile 
or arising from a lateral tubercle, plane or convex above, thickest 
behind, 8 x 11 x 2 cm.; surface laccate, glabrous, azonate, fulvous 
to chestnut, deeply sulcate ; margin rounded, velvety, ochroleu- 
cous, at length concolorous: context very soft, floccose, radiate- 
fibrous, concentrically banded, 1 cm. thick, umbrinous-chestnut : 
tubes indistinctly stratified, 1.25 cm. long, 4-5 to a mm., umbri- 
nous within, mouths whitish or yellowish, at length umbrinous, 
dissepiments entire, obtuse ; spores ellipsoid, pale yellowish-brown, 
smooth, 8-10 x 4-6 yp. 
This plant was collected on soft palmetto logs in Florida by 
Mr. C. G. Lloyd, January, 1897; type in New York Botanical 
Garden. It is very nearly related to G. zonatum. 
SPECIES INQUIRENDAE 
Fomes incrustatus Fries, collected in Costa Rica by Oersted. 
Pileus 5-7 cm. broad, sordid umbrinous, laccate : context scanty, 
Pallid, tubes concolorous ; stipe central, torulose, unequal. This 
Species was not transferred by Patouillard to the genus Gano- 
derma, 
G. nutans (Fries) Pat., also collected by Oersted in Costa Rica. 
Pileus scarcely 2 cm. broad, orbicular, pallid to bay-black, lac- 
Cate ; context scanty, pallid, pores pallid to brown ; stipe long, 
Slender, twisted as though climbing, recurved at the apex, giving 
the pileus the appearance of nodding; spores ovoid, brown, 
_ &chinulate, 12-15 X 104. 
Specimens seen in foreign herbaria appear to be very distinct. 
| Fries’ description in Novae Symbolae 61-62 is quite full and can- 
