B. badi´ceps Pk.—badius, bay and head. (Plate [CXVI], p. 420.) Pileus firm, convex or somewhat centrally depressed when mature, dry, velvety, obliquely truncate on the margin, bay-red or dark-maroon color. Flesh white unchangeable, taste and odor mild, sweet, suggestive of molasses. Tubes plane, adnate, white or whitish, becoming dingy with age, the mouths minute. Stem equal or slightly swollen in the middle, radicating, glabrous, solid, brownish.
Pileus 4–8 cm. broad. Stem 4–5 cm. long, 1.5–3 cm. thick.
Oak woods. West Philadelphia, Pa. August and September. Charles McIlvaine.
The truncate or beveled margin of the pileus is a striking feature in this species. It is about 4 mm. broad and as even as if cut with a knife. Sometimes the surface of the stem ruptures transversely just below the top, the liberated shreds above curling upward against the tubes and those below curving outward and downward. In mature plants brownish spots appear in the flesh of the pileus. “When cooked it is of high flavor and tender as kidney,” C. McIlvaine. Peck, Bull. Torrey Bot. Club, January 27, 1900.
Grouped by F.D. Briscoe—Studies by C. McIlvaine. Plate CXVIII.
| Fig. | Page. | Fig. | Page. |
| 1. Boletus separans, | [445] | 4. Boletus scarer areolatus, | [461–463] |
| 2. Boletus russelli, | [436] | 5. Boletus edulis, | [445] |
| 3. Boletus illudens, | [439] |
Laceri´pedes—lacerated stem.
Stem elongated, coarsely pitted or deeply and lacunosely reticulated in small hollows, the ridges somewhat intumescent in wet weather and more or less lacerated, giving a rough or shaggy appearance to the stem.
The species of this tribe are few, very closely allied and so far as known are peculiar to this country.