555 White : Mt. Desert Fungi 



Pileus 4-14 cm. broad; stem 4-12 cm. long, 1-2.5 cm. thick 

 at the top, 2.5-5 cm. thick at the base. 



Woods. July. 



This Boletus agrees so closely with B. piirpiircns in all its char- 

 acters except color that it has seemed best to consider it a mere 

 variety of that species, but future investigation may show it to be 

 a distinct species. It does not appear to have any purple hues in 

 either pileus or stem. 



* Boletus Russellii Frost. Under pines in dry soil ; 

 scarce. 



Boletus scaber Frost. Very common and variable. 



* Boletus scaber mutabilis Peck. Common. 



* Boletus scaber niveus Peck. Common. 



* Boletus scabripes Peck, sp. nov. Pileus thick, broadly con- 

 vex, firm, dry, glabrous, reddish-brown with a bloom ; tubes con- 

 vex in the mass, adnate or slightly depressed around the stem, 

 brown, with very small round darker mouths ; stem stout, equal, 

 solid but spongy within, grayish-white, adorned with numerous 

 small projecting black points; spores oblong, fusiform, 12-15 ;« 

 long, 4-5 a broad. 



Pileus about 15 cm. broad; stem about 10 cm. long, 2-3 cm. 

 thick. 



Rich soil in woods. July. A fine large species but with a 

 disagreeable taste. The black points on the stem are suggestive 

 of those on the stem of B. scaber, but they are smaller and more 

 numerous. In drying the plants become black and exude a black 

 juice with a strong odor. 



* Boletus subglabripes Peck. In damp shady soil ; only 

 two plants found. 



Boletus subluteus Peck. Very plentiful all summer. 



Family Agaricaceae 



( Ca7itharcHcae) 



Caxtharellus aurantiacus (Wulf ) Fr. Plentiful. 

 Caxtharellus cibarius Fries. Common and widely dis- 

 tributed. 



* Caxtharellus flaviceps Peck. 



Caxtharellus floccosus Schwein. Very plentiful in a few 

 localities. 



