THE TUBE-BEARING FUNGI 



369 



becoming glabrous, soon tessellately cracked, grayish or dingy yellow. Tubes 

 decurrent, medium size, golden yellow. 



The stem is equal, rigid, incurved, yellow within and without. The spores 

 are oblong- fusiform, pale-brown, 12.5-15x4/*.. Peck. 



The tubes are rather large and unequal, and inclined to run down upon 

 the stem. 



This plant was found near Boston, Mass., by Mrs. E. B. Blackford and 

 photographed by Dr. Kellerman. Captain Mcllvaine says it is edible but not 

 of good flavor. It is found in July and August. 



Boletus separans. Pk. 



The Separating Boletus. Edibee. 



Separans, separating, alluding to the tubes sometimes separating from the 

 stem by the expansion of the pileus. 



The pileus is convex, thick, smooth, subshining, often pitted or corrugated; 

 brownish-red or dull-lilac, sometimes fading to yellowish on the margin; flesh 

 white and unchangeable. 



Figure 299. Boletus separans. One-half natural size. 



