60 



Mycologia 



not easily confused with any poisonous species. Several years 

 ago, after the pine trees had been set out around Conservatory 

 Range I, a single hymenophore of this fungus was found under 

 one of them. In recent years, I have seen hundreds of speci- 

 mens there, scattered far and wide beneath the trees, usually 

 appearing in late autumn. 



Tylopilus alboater (Schw.) Murrill 

 Boletus nigrellus Peck 

 Blackish Boletus 



Plate 2. Figure 2. X 1 



Pileus convex, solitary or gregarious, 6-^10 cm. broad, 2 cm. 

 thick ; surface pruinose to tomentose, very dark brown to black, 

 sometimes rimose-areolate ; margin rather thick, involute when 

 young; context white, changing to pinkish-gray when wounded, 

 taste nutty ; tubes adnate, slightly depressed, pale-gray to flesh- 

 colored, changing slowly to black or reddish-black when wounded, 

 I cm. long, mouths small, irregularly circular ; spores oblong- 

 ellipsoid, smooth, pointed at one end, dull-flesh-colored, 10-12 

 X 4-6 fi ; stipe short, subequal, even, concolorous or a little paler 

 than the pileus, pinkish-gray at the apex, velvety at the base, 

 solid, 5-8 cm. long, 1 .5—52.5 cm. thick. 



This is apparently a rather rare species, originally described 

 from North Carolina and occurring in open deciduous woods or 

 groves from New York to Georgia and Mississippi. Peck found 

 it at Sandlake, New York ; and I found it once here under an 

 oak in the rear of the Museum Building and had the accompany- 

 ing drawing made from the specimens. Other specimens in the 

 herbarium are: New Rochelle, New York, Miss G. Cannon; New 

 York Botanical Garden, A. J. Corbett; Monmouth County, New 

 Jersey, Ballon; Ohio Pyle, Pennsylvania, Murrill; Sunburst, 

 North Carolina, House; Macon County, Alabama, Earle; Ocean 

 Springs, Mississippi, Mrs. Earle. Hard figures specimens col- 

 lected by him in Ohio and states that the species is edible and 

 fairly good. 



