REPORT ON EDIBLE FUNGI 1895-99 1 75 



ochraceous where wounded ; stem subequal, even, glabrous, colored like or 

 paler than the pileus ; spores rusty ochraceous, .00035 to -0005 of an inch 

 long, .00016 to .0002 broad. 



The related boletus belongs to the tribe of boleti known as Edules because 

 of their specially esculent character, but it differs from the general character 

 of the tribe in having its tubes not at all or but slightly shortened around 

 the stem and in its stem not being thickened or bulbous at the base. The 

 species is quite variable in the color of the cap, which is generally darker 

 in young plants, paler in old ones. It may be brown, reddish brown or 

 blackish brown when young, but is more or less tinged with tawny or ochra- 

 ceous when old. It is smooth and even or minutely tomentose and some- 

 times slightly rugose. In wet weather the margin of the cap sometimes 

 curves upward, giving a very convex surface to the tubes. Sometimes the 

 wounded flesh slowly assumes a yellowish hue. The peculiar rusty ochra- 

 ceous hue of the spores is also seen sometimes in the tubes of old specimens. 

 As in many species, the flesh of old plants is more soft than that of young 

 ones. The stem is quite variable and is often narrowed downward. It is 

 sometimes very obscurely reticulated at the top. 



The cap is generally 2 to 4 inches broad ; the stem 1.5 to 3 inches long, 

 4 to 8 lines thick. The plants are found in thin woods or in bushy places in 

 July and August. 



Variety maculosus Pk. differs from the type simply in having a few 

 yellowish spots scattered over the cap. 



While not as high flavored as some boleti, this is, nevertheless, a fairly 

 good and perfectly safe one. 



Hydnum albidum Pk. 

 Whitish Hydnum 



PLATE 67, fig. 1-7 



Pileus fleshy, thin, broadly convex or nearly plane, subpruinose, white, 

 flesh white ; aculei short, white ; stem short, solid, central or eccentric, white ; 

 spores subglobose, .00016 to .0002 of an inch broad. 



The whitish hydnum is uniformly colored. It grows in groups or in 

 clusters. In the latter case the caps are sometimes irregular, because of the 

 crowded mode of growth, and the stems are occasionally eccentric. It is a 



