In October, 1898, a beautiful variety (see Plate LXI, fig. 2, p.—), occurred which I had not previously seen. It was sent by me to Professor Peck. The plants grew in large clusters from rotting, refuse straw in the ruin of a stable; the white, cottony mycelium running upon and through the straw. The solid stems of some were straight, others curved, ranging from 2–6 in. long, the taller ones tapering from base to spindling apex, the shorter ones decidedly bulbous and ending abruptly. They were twisted and delicately marked. These markings break up into dark thread-like fibrils, leaving the stem striate and satin-glossy. =Pileus= from 2–4 in. across, dark Vandyke-brown when young, lighter in age, streaked, glossy. =Gills= at first white, tardily changing to light salmon color, broad, ventricose, free. Taste and smell pleasant of almonds. Good, delicious. Professor Peck wrote of it: “It has the general appearance of Pluteus cervinus, but these specimens seem to depart from the usual form of growing in clusters from the ground, and in having an almond flavor. Without knowing more about it I would scarcely feel justified in separating it from such a variable species. As Fries sometimes remarks concerning variable species: Perhaps several species are concealed under the one name, but a pretty full and accurate knowledge of them is desirable if one is to split them up.” This is excellent judgment. While I believe the above to be a distinct species, the disposition to make new species of varieties is regrettable in many botanists. Var. _Bul´lii_ Berk., MS. =Pileus= 4–6 in. across, flesh thick, convex then expanded, smooth, even, pallid, the disk darker. =Gills= free, rounded behind, rather distant from the stem, crowded, ½ in. broad, pale salmon-color. =Stem= 3–4 in. long, 1 in. and more thick, slightly swollen at the base, fibrillose, pale brown, darkest at the base, solid. _Massee._ =Pileus= 6 in. across, expanded from bell-shape, ashy-white (oyster color), glossy, like floss silk, silky fibrillose, irregularly corrugated. =Skin= separable. =Flesh= spongy, pure white, like shreds of cotton, separable into plates, very brittle, ½ in. thick at stem, immediately thinning to ⅛ in., very thin toward margin. =Gills= thin, elastic, rounded behind, close to stem, free, ½ in. wide, close, alternate short and long, white, then tinged and spotted pink with spores which when cast in mass are a pinkish-brown with slight lavender shade. =Stem= 5 in. long, ½-¾ in. thick, subequal, spreading at top, white, silky-fibrillose, changing to very light yellowish brown from center to base, exterior hard, skin thin, tough, interior filled with continuous, cottony fibers, snow-white, brittle, watery, slightly swollen at base. Taste pleasant. Mt. Gretna, Pa., July, 1898, on chestnut stump and in woods on ground among leaves. Leaves adhere to base of stem which is powdery-white. _McIlvaine._ Cooked, it is as good as P. cervinus.