THE TUBE-BEARING FUNGI 



383 



adhering - to the margin of the pilens, 

 soon disappearing. The spores are 

 8-iox4/x. Peck, in Boleti of the 

 U. S. 



This plant grows in New York and 

 the New England states, under pine and 

 tamarack trees. The caps are convex, 

 covered with a tawny-brown fibrillose 

 tomentum. The stems of those I have 

 seen are hollow from the first. The 

 plants in Figure 314 were sent me from 

 Massachusetts by Mrs. Blackford. 



Boletinus porosus. (Berk.) Pk. 



These form a small but interesting 

 species, not usually exceeding three and 

 a half inches in diameter nor more than 

 two inches in height. 



The cap is somewhat fleshy, nut- 

 brown, or yellowish-brown, shading 



tO olivaceOUS in Color in mOSt of the Figure 3 U.-Boletinus cavipes. 



specimens which I have found; when fresh and moist, somewhat sticky and 

 shining. The margins are thin, rather even, and inclined to be in- 

 volute; the shape of the cap is more or less irregular, in many cases almost 

 kidney-shaped. 



The stem is laterally attached, tough, and gradually expands into 

 the pileus which it resembles in color; it is markedly reticulated at 

 the top by the decurrent walls of the spore-tubes. The spore-surface 

 is yellow, the tubes arranged in radiating rows, some being more 

 prominent than others, the partitions often assuming the form of 

 gills which branch and are connected by cross partitions of less prom- 

 inence. The stratum of tubes, while soft, is very tenaceous, not separating 

 from the flesh of the pileus. 



The odor and taste of all the specimens found were pleasant. Found in 

 damp woods in July and August. When a sufficient number can be found they 

 make an excellent dish. 



It is found in abundance about Chillicothe. 



