42 [ASSEMBLT, 



This plant approcaches R. ccruginea so closely, that it may be a 

 question whether it is a distinct species or a mere variety. It differs 

 in the breaking up of the cuticle and in having the disk generally 

 paler instead of darker than the rest of the pileus. The cuticle 

 usually remains entire on the disk, which is of a dingy yellowish 

 hue, while toward the margin the color is greenish or smoky-green, 

 , though in some instances it also is yellowish or dirty straw-color. 

 The greenish specimens so closely resemble R. virescens, that in a 

 dry time they might easily be confused wath that species. The viscid 

 pileus and its striate margin will distinguish it. The lamellae are 

 rather narrow anteriorly. 



Boletus subaureus, n. sp. 



Pileus convex, becoming nearly plane, soft, viscose, pale-yellow or 

 golden-yellow, sometimes mottled with darker spots or tufts of hairs, 

 the young margin adorned with a slight grayish tomentum, flesh pale- 

 yellow; tubes subdecurrent, small, angular or subrotund, at first yel- 

 low then ochraceous-yellow ; stem cylindrical, solid, glandular-punc- 

 tate, yellow without and within ; spores oblong-elliptical, .00035 to 

 .0004 in. long ; .00016 broad. 



Pileus 2 to 4 in. broad, stem 1.5 to 2.5 in. long, 5 to 6 lines thick. 



Woods. Day. July. 



This species is intermediate between B. flavidus and B. granu- 

 laius. It has the stout stem, thick pileus and general aspect of the 

 latter, but the yellow color of the stem and young tubes connect it 

 more closely with the former. 



Boletus flavipes, n. sp, 



Pileus convex or nearly plane, glabrous, dull-red, inclining to 

 chestnut color; tubes nearly plane or convex, small, subrotund, pale- 

 yellow, becoming a little darker with age ; stem cylindrical, solid, 

 furfuraceous, pale-yellow; spores oblong-fusiform, olivaceous, .0005 

 to .0006 in. long, .00016 to .0002 in. broad. 



Pileus 1.5 to 2.5 in. broad, stem 2 to 3 in. long; 4 to 6 lines 

 thick. 



Woods. Caroga and South Ballston. July and Aug. 



Polyporus confluens, Fr. 



Pine woods. New Scotland. Sept. 



Our specimens are not at all squamulose, and this character is not 

 attributed to the species by all authors. It is probable that it is 

 not uniform in this respect. 



Polyporus Schweinitzii, Fr. 



Pine woods, generally at or near the base of stumps and trees. 

 West Albany. Sept. 



P. hispidoides is a dimidiate form of this species, and not a va- 

 riety of P.hisjndus. 



