MuRRiLL : The Polyporaceae of North America 007 



Collected by Professor Underwood in Plorida. Closely re- 

 lated to G. stdcatiim, but differing in general appearance, size of 

 pores, and in the extent and arrangement of varnish upon the hy- 

 meniuni. A similar coating of varnish exists in G. sulcatum 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. sul- 



catuui. 



y. 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 abov-e, thickest 

 behind, 8x11x2 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, i 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 iJL. 



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. zonatiim. 



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- 

 dernia. 



G. nutatis {FrxQs) 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, 

 echinulate, 12-15 x lO/i. 



Specimens seen in foreign herbaria appear to be very distinct. 

 Fries' description in Novae Symbolae 61-62 is quite full and can- 



