374 



MUSHROOMS, EDIBLE AND OTHERWISE 



then expanded, sometimes broadly umbonate ; very viscid when moist, especially 

 on the margin ; yellow or becoming- dingy or streaked with red in age. 



The tube-surface is nearly plane and the tubes join squarely against the 

 stem ; quite large, angular, pale yellow, becoming a dull ochraceous. 



The stem is slender, equal or tapering upward, firm, with no trace of a ring ; 

 yellow, often brownish toward the base, covered with numerous brown or reddish- 

 brown quite persistent granular dots ; yellow within. The spores are oblong, 

 ochraceous-ferruginous, 9-1 1x4-5/*,. 



The veil is only observed in the very young specimens. Only caps are good 

 to eat. The specimens were photographed for me by Dr. Kellerman. 



Boletus M or gam. Pk. 



Morgan's Boletus. Edible. 



Morgani is named in honor of Prof. Morgan. 



The pileus is one and a half to two inches broad, convex, soft, glabrous, 

 viscid ; red, yellow, or red fading to yellow on the margin ; flesh white, tinged 



with red and yellow, unchangeable. 



The tube-surface convex, depressed 

 around the stem, tubes rather long and 

 large, bright yellow, becoming greenish- 

 yellow. 



The stem is elongated, tapering up- 

 ward, pitted with long and narrow de- 

 pressions, yellow, red in the depressions, 

 colored within like the flesh of the 

 pileus. The spores are olive-brown, 

 1 8-22,11, about half as broad. Peck. 



This plant is found in company with 

 P>. Russeli, which it resembles very 

 closely. Its smooth, viscid cap and 

 white flesh will distinguish it. Its stem 

 is much more rough in wet weather 

 than in dry. The peculiar color of the 

 stem will help to identify the species. 

 I found it frequently on Ralston's Run, 

 near Chillicothe. It is found in many 

 of the states of the Union. July and 



Figure 305. Boletus Morgani. One-half \,, rr ,, c ,t- 



natural size. /MlgUSt. 



