Hyporho´dii. Gr—somewhat rose-colored.
Tubes adnate to the stem, whitish, then white-incarnate from the rosy spores.
In this tribe the tubes are at first whitish, but with the development of the spores they usually assume a pinkish or flesh-colored hue. Wounds of the tubes in some species cause a change in color but not to blue, nor are the tube mouths differently colored as in the Luridi. The stem in some is more or less reticulated but this is scarcely a constant or reliable character in these species. Typically the spores are rosy or flesh-colored, but I have admitted species in which they incline to rust-colored, giving more weight to the color of the tubes than to that of the spores.
| Pileus black or blackish | B. nigrellus | |
| Pileus some other color | 1 | |
| 1. | Stem more than four lines thick | 2 |
| 1. | Stem slender, generally less than four lines thick | B. gracilis |
| 2. Stem not reticulated | 3 | |
| 2. Stem more or less reticulated | 4 | |
| 3. | Tubes angular, flesh-colored | B. conicus |
| 3. | Tubes round, white | B. alutarius |
| 4. Taste mild | B. indecisus | |
| 4. Taste bitter | B. felleus | |
| Peck, Boleti of the U.S. |
B. con´icus Rav.—conical. Pileus convex or subconical, clothed with bundled appressed yellowish flocci. Flesh white, unchangeable, tasteless. Tubes ventricose, flesh-colored, becoming darker from the spores, the mouths small, angular, slightly fringed. Stem glabrous, tapering upward, pale-yellow. Spores fusiform, subferruginous.
Pileus 1–2 in. broad. Stem 2 in. long, 6 lines thick.
Damp pine woods. South Carolina, Ravenel.
The species is compared to Boletus scaber, from which it differs in its smaller tubes and smooth stem, and from both this and B. albellus it differs in the color of the tubes and in the yellowish flocci of the pileus. I have seen no specimens, but on account of the color of the tubes I have placed the species with the Hyporhodii. Peck, Boleti of the U.S.
B. gra´cilis Pk.—slender. (Plate [CXIV], fig. 1, p. 414.) Pileus convex, glabrous or minutely tomentose, rarely squamulose, ochraceous-brown, tawny-brown or reddish-brown. Flesh white. Tubes plane or convex, depressed around the stem, nearly free, whitish, becoming pale flesh-colored, their mouths subrotund. Stem long, slender, equal or slightly tapering upward, pruinose or minutely branny, even or marked by slender elevated anastomosing lines which form long narrow reticulations. Spores subferruginous, 12.5–17.5×5–6µ.
Var. lϫvipes. Stem even.