Polyporacese 



Boletus, lated stem, is regarded as a variety of this species. The red-stemmed 

 Boletus, B. erytJiropus Pers., is also indicated as a variety of it by 

 Fries. It is smaller than B. luridus, has a brown or reddish-brown 

 pileus and a slender cylindrical stem, not reticulated, but dotted with 

 squamules. It has been reported from California by Harkness and 

 Moore. Peck, Boleti of the U. S. 



Var. erythropus received from Dr. J. W. Harshberger, Philadelphia, 

 May, 1896. 



Often shining as if varnished and very handsome. I frequently found 

 it in West Virginia, New Jersey and Pennsylvania in mixed woods 

 among leaves. Its reputation is bad. It is undoubtedly edible by 

 many, and is delicious. The caution heading Luridi should be carefully 

 observed. 



B. purpu'reus Fr. purple. PileilS convex, opaque, dry, somewhat 

 velvety, purplish-red. Flesh in the young plant only becoming blue, 

 then dark-yellow. Tubes nearly free, yellow or greenish-yellow, their 

 mouths minute, purple-orange, changing to blue where wounded. Stem 

 stout, firm, adorned with purple veins or dots, sometimes reticulated at 

 the -apex only, yellow, reddish within, especially at the base. Spores 

 greenish-brown, 1012x56^. 



Pileus 2-4 in. broad. Stem 2-4 in. long, 6-8 lines thick. 



Woods. North Carolina, Curtis; New York, Peck; Minnesota, John- 

 son. Peck, Boleti of the U. S. 



West Virginia, Mt. Gretna, Pa., Mcllvaine. 



At Mt. Gretna, Pa., 1897-1898, B. purpureus was common in oak 

 and chestnut woods. It is a showy species, easily distinguished by its 

 velvety cap. In young specimens the stem is robust, then tapering 

 upward. When old the cap loses its rich color toward the margin, 

 becoming yellowish. The flesh is thick, firm and of excellent flavor. 

 It undoubtedly proved itself delicious and harmless to many eating it. 



B. vermiculo'sus Pk. wormy. Pileus broadly convex, thick, firm, 

 dry , glabrous, or very minutely tomentose, brown, yellowish-brown or 

 grayish-brown, sometimes tinged with red. Flesh white or whitish, 

 quickly changing to blue where wounded. Tubes plane or slightly 

 convex, nearly free, yellow, their mouths small, round, brownish-orange, 

 becoming darker or blackish with age, changing promptly to blue 



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