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The stem is equal or slightly tapering upward; reticulated, either wholly or in upper part only; colored like the pileus or a little paler, sometimes slightly furfuraceous. Spores subfusiform, brownish-ochraceous. _Peck_, Boleti of U. S.
The specimens in Figure 299 were found at Londonderry, about fifteen miles east of Chillicothe, in a gra.s.sy woods near a stream. The taste is agreeable when raw and quite good when cooked. This might appropriately have been called the lilac Boletus, for that shade of color is usually present in it, somewhere. August to October.
_Boletus auripes. Pk._
YELLOW-STEMMED BOLETUS. EDIBLE.
[Ill.u.s.tration: Figure 300.--Boletus auripes. One-half natural size. Caps yellowish-brown. Tube surface and stem yellow.]
Auripes is from _aureus_, yellow or golden; _pes_, foot; so called from its yellow stem.
The pileus is three to four inches broad, convex, nearly smooth, yellowish-brown, the flesh often cracking in areas in old plants; flesh yellow at first, fading to a lighter color, in age.
The tubes are nearly plane, their mouths small, nearly round, at first stuffed, yellow.
The stem is two to four inches long, nearly equal, often reticulated, solid, a bright yellow on the surface and a light yellow within. The spores are ochraceous-brown, tinged with green, 125.
The whole plant, except the upper surface of the cap, is a golden yellow, and even the surface of the cap is more or less yellow. It favors one form of the B. edulis. It is sometimes found in mixed woods, especially if there are mountain laurels in the woods (_Kalmia latifolia_). It is found in July and August.
_Boletus retipes. B. and C._
THE BEAUTIFUL-STEMMED BOLETUS. EDIBLE.
[Ill.u.s.tration: Figure 301.--Boletus retipes. Natural size.]
Retipes is from _rete_, a net; _pes_, a foot; so called from the delicate net-work seen on the stem.
The pileus is convex, dry, powdered with yellow, sometimes rivulose or cracked in areas. The tubes are adnate, yellow.
The stem is subequal, cespitose, reticulate to the base, pulverulent below. The spores are greenish-ochraceous, 12-154-5. _Peck_, Boleti.
B. retipes is very close to B. ornatipes, but its manner of growth, its pulverulent cap, and its greenish-ochraceous spores will at once distinguish it. I have found them on Ralston's Run, a number from the same mycelial cl.u.s.ter, as in Figure 301. The caps only are good. The specimens in the figure were found near Ashville, N. C., and photographed by Prof. H. C. Beardslee.
_Boletus griseus. Frost._
THE GRAY BOLETUS.
[Ill.u.s.tration: Figure 302.--Boletus griseus. Two-thirds natural size.]
Griseus means gray. The pileus is broadly convex, firm, dry, almost smooth, gray or grayish black. The flesh is whitish or gray.
The tubes are attached to the stem and slightly depressed around the stem, nearly plane, their mouths being small, nearly round, white or whitish.
The stem is slightly unequal, tapering downward, distinctly reticulated, whitish or yellowish, sometimes reddish toward the base. The spores are ochraceous-brown, 10-144-5. _Peck._
This plant, with us, grows singly and it is infrequently found. I have found it always in beech woods along Ralston's Run. It is found in August and September.
_Boletus nigrellus. Pk._
THE BLACKISH BOLETUS. EDIBLE.
[Ill.u.s.tration: Figure 303.--Boletus nigrellus. Two-thirds natural size.]
Nigrellus is a diminutive of _niger_, black. The entire plant is blackish except the pore surface.
The pileus is three to six inches broad, rather broadly convex or nearly plane, dry, blackish. The flesh is soft and unchangeable.
The tube-surface is rather plane, adhering to the stem, sometimes slightly depressed around the stem, the mouths being small, nearly round; whitish, becoming flesh-colored, changing to black or brown when wounded.
The stem is equal, short, even, black or blackish. The spores are dull flesh-color, 10-125-6.
When I first found this specimen I was inclined to call it B. alboater, but its flesh-colored tubes served to distinguish it. I found the specimens in Figure 303 on Edinger's Hill, near Chillicothe. The taste is mild and fairly good. August and September.
_Boletus America.n.u.s. Pk._
[Ill.u.s.tration: Figure 304.--Boletus America.n.u.s. One-half natural size.]
This species will attract the attention of the collector because of its very viscid cap. I found the specimens in Figure 304 growing on Cemetery Hill, near Chillicothe, in company with Lactarius deliciosus. They were growing near and under pine trees, both in dense groups and separately.
The caps were very viscid, yellow with a slight tinge of red. The stem is covered with numerous reddish-brown dots.
The pileus is one to three inches broad, thin; at first rather globose, convex, then expanded, sometimes broadly umbonate; very viscid when moist, especially on the margin; yellow or becoming dingy or streaked with red in age.
The tube-surface is nearly plane and the tubes join squarely against the stem; quite large, angular, pale yellow, becoming a dull ochraceous.
The stem is slender, equal or tapering upward, firm, with no trace of a ring; yellow, often brownish toward the base, covered with numerous brown or reddish-brown quite persistent granular dots; yellow within.
The spores are oblong, ochraceous-ferruginous, 9-114-5.
The veil is only observed in the very young specimens. Only caps are good to eat. The specimens were photographed for me by Dr. Kellerman.
_Boletus Morgani. Pk._
MORGAN'S BOLETUS. EDIBLE.
[Ill.u.s.tration: Figure 305.--Boletus Morgani. One-half natural size.]
Morgani is named in honor of Prof. Morgan.
The pileus is one and a half to two inches broad, convex, soft, glabrous, viscid; red, yellow, or red fading to yellow on the margin; flesh white, tinged with red and yellow, unchangeable.
The tube-surface convex, depressed around the stem, tubes rather long and large, bright yellow, becoming greenish-yellow.
The stem is elongated, tapering upward, pitted with long and narrow depressions, yellow, red in the depressions, colored within like the flesh of the pileus. The spores are olive-brown, 18-22, about half as broad. _Peck._
