﻿The Mycologic Flora of the Miami Valley, 0. 



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thus far found in this locality scarcely reach the smallest of these di- 

 mensions. No species is more abundant in the mountains; it is 

 there the common Boletus. Its colors are various, from gray to orange 

 and brown ; it is easily recognized by its shaggy stipe. 



12. B. sordidus, Frost. — Pileus pulvinate, somewhat tomentose. 

 Stipe solid, somewhat flexuous, striate, smaller as it enters the pileus, 

 generally greenish at the apex. Tubules long, nearly free, white, then 

 sordid; the pores large, angular. Spores dirty-brown, fusiform, .011 — 

 .013X.0055 mm. 



In damp woods, in summer and autumn; not uncommon. Pileus 

 2-3 in. broad, stipe 2-J--3 in. long, and about £ of an inch thick. The 

 flesh is white, sometimes tinged with red and green ; the tubules 

 change to bluish green when bruised. This is no doubt Mr. Frost's 

 plant, but our specimens are much finer than his typical ones. His 

 description is rather imperfect, but the agreement of the spores and 

 otherwise is very close. 



F. Changing to flesh-color. 



13. B. felleus, Bull. — Pileus pulvinate then expanded, soft, glab- 

 rous, even, brownish or reddish-gray. Stipe solid, tapering upward and 

 reticulate. Tubules adnate, convex, elongated; the pores angular,, 

 white then flesh-color. Spores rose-color, fusiform, .016X005 mm. 



In dry woods in summer; common. Pileus 4-6 in. broad, stipe 4-6 

 in. long, and about 1 in. thick. The bright rosy spores at once dis- 

 tinguish this common species; the dimensions given are about those 

 of the plants met with in this region ; the flesh is white or pale flesh- 

 color; the taste is bitter. 



14. B. gracilis, Peck.' — Pileus convex, dry, smooth or minutely 

 tomentose, ochraceous-brown. Stipe slender, equal or tapering upward, 

 solid, marked with fine elevated lines which anastomose and form very 

 long narrow reticulations. Tubules plane, depressed about the stipe 

 or nearly free; the pores small, round, whitish then pale flesh-color. 

 Spores flesh-color, fusiform, .013.— .014X.0055 mm. 



On the ground in woods, in summer; not common. Pileus 1^-2-J- in. 

 broad, stipe 3-5 in. long, and an inch thick. This plant is much 

 more slender than B. felleus, and the character of the reticulations on 

 the stipe quite different. Spores that I have kept for some time are 

 somewhat ferruginous in tint. The specimens in this region were all 

 sent 'me by Mr. Meyncke, of Brookville, Ind. 



