SPECIES OF VISCID BOLETI. 61 



angular or subrotund, pale-yellow when young, becoming dingy- 

 ochraceous, changing to purplish-brown where bruised ; stem equal 

 or slight^ thickened at the base, straight or flexuous, annulate, 

 yellow at the apex, elsewhere reddish or reddish-brown, sometimes 

 stained with yellow, slightly reticulate at the apex by the decurrent 

 walls of the tubes, annulus whitish or yellow, persistent, forming a 

 thick tomeutose baud about the stem ; spores bi'ownish-ochraceous, 

 .0004 to .00045 in. long, .00016 to .0002 broad. 



Plant single or rarely casspitose, pileus 2 to 5 in. broad, stem 2 to 

 5 in. long, 4 to 9 lines thick. 



Mossy ground in woods and grassy ground in open places ; gener- 

 ally under or near larch trees. 



This fine species is apparently the American analogue of the Euro- 

 pean B. elegans, from which it differs in its generally darker color, 

 in its persistent, not fugacious, annulus, and in its stem, which is not 

 at all dotted, either above or below the annulus. It is edible, and 

 has a mild taste in the fresh uncooked state. It has occurred once 

 in Washington Park, Albany, near some larch trees, with which it was 

 probably introduced. 



Boletus luteus L. 

 Yellow-brown Boletus. 



Pileus gibbous or convex, sometimes nearly plane, viscid or glutin- 

 ous when moist, virgate-spotted, yellowish-brown, flesh white or yel- 

 lowish ; tubes small, simple, adnate, at first pale-yellow, then dingy- 

 ochraceous ; stem stout, rather short, annulate, rough with dots and 

 yellowish above the ring, brownish-white or yellowish below, the annu- 

 lus large, membranous, whitish or brownish-white ; spores ochraceo- 

 ferruginous, nearly fusiform, .0003 in. long, .00015 broad. 



Gregarious or rarely subcsespitose, pileus 2 to 5 in. broad, stem 

 1 to 2 in. long, 5 to 8 lines thick. 



Under pine trees, Pinus sylvesli'is. Menands. October. 



This is the- only instance in which I have observed this species in our 

 State. Possibly it may have been introduced in this place with the 

 young pines under which it was growing. Its annulus is very conspicu- 

 ous. It is sometimes torn and partly adherent in fragments to the mar- 

 gin of the pileus. In short-stemmed specimens it extends downwards 

 and covers the lower part of the stem like a sheath, resembling in this 

 respect the western Boletus sphoerosporus, a related species. In other 

 specimens it forms a broad band with the upper margin widely spread- 

 ing. In the dried specimens the pileus has assumed a dull-brownish 

 or reddish-brown hue. The plant is edible. 



