Polyporaceae 



Boletus. Snow Hill, N. J. Gravelly soil, mixed woods, 1892. Mcllvaine. 

 The stem and tubes should be removed. The caps are very fine. 



B. albel'lllS Pk. whitish. PileilS convex or gibbous, soft, glabrous, 

 whitish. Flesh white, unchangeable. Tubes convex, free, or nearly 

 so, small, subrotund, whitish, unchangeable. Stem glabrous or minutely 

 branny, substriate, bulbous or thickened at the base, whitish. Spores 

 brownish-ochraceous, 1 4-16x5-6^. 



Pileus 1-2 in. broad. Stem 1-2 in. long, 3-6 lines thick. 



Woods. New York, Peck. 



This is closely related to B. scaber, of which it may possibly prove 

 to be a dwarf form ; but it is easily distinguished by its smooth or only 

 slightly scurfy and subbulbous stem. It presents no appearance of the 

 colored dot-like squamules which are a constant and characteristic 

 feature of that species. Peck, Boleti of the U. S. 



West Virginia. Woodland Cemetery, Philadelphia. Mcllvaine. 



Specimens found at Mt. Gretna, Pa., had a satiny, glossy stem, 

 beautifully furfuraceous, and stem not thickened at base. Professor 

 Peck, to whom specimens were sent, writes: "Stem is a little more 

 furfuraceous, and not thickened at the base, otherwise the agreement is 

 very good." It is good fried. 



B. chro'mapes Frost. Pileus convex or nearly plane, slightly and 

 sometimes fasciculately tomentose, pale-red. Flesh white, unchangeable. 

 Tubes subadnate, more or less depressed around the stem, white or 

 whitish, becoming brown. Stem equal or slightly tapering upward, 

 rough-spotted, whitish or pallid, chrome-yellow at the base both without 

 and within, sometimes reddish above. Spores oblong, 12-14x4-5. 



PileilS 2-4 in. broad. Stem 2-4 in. long, 4-6 lines thick. 



Woods. New England, Frost; New York, Peck. 



The yellow base of the stem appears to be a peculiar and constant 

 character by which the species may easily be recognized. It imitates 

 Boletus piperatus in this respect, but in everything els.e it is very dis- 

 tinct from that plant. Sometimes the stem' is so badly infested by 

 larvae that it is difficult to procure a sound specimen. The spores have 

 a subferruginous color with a slight incarnate tint, but the rough-dotted 

 stem indicates a relationship with B. scaber. Through this species, Bo- 

 letus conicus and B. gracilis, the Versipelles and the Hyporhodii ap- 



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