382 



MUSHROOMS, EDIBLE AND OTHERWISE 



The stem is solid, equal, and covered with a cottony layer of mycelium- 

 threads like the pileus, though often paler. The spores are ochraceous, 15-18x6-8/11. 

 The plants are two to four inches broad, and one and a half to three inches high. 

 Found from July to October. 



Figure 313. Boletinus pictus. 



Boletinus cavipcs. Kalchb. 

 Hollow-Stemmed Boletinus. Edible. 



Cavipes is from two Latin words meaning a hollow stem. 



The pileus is broadly convex, rather tough, flexible, soft, subumbonate, 

 fibrillose-scaly, tawny-brown, sometimes tinged with reddish or purplish, flesh 

 yellowish. The tubes are slightly decurrent, at first pale-yellcw, then darker and 

 tinged with green, becoming dingy-ochraceous with age. The stem is equal or 

 slightly tapering upward, somewhat fibrillose or floccose, slightly ringed, hollow, 

 tawny-brown or yellowish-brown, yellowish at the top and marked by the 

 decurrent dissepiments of the tubes, white within. Veil whitish, partly 



