Chester county; West Philadelphia, Pa., September; Mt. Gretna, Eagle’s Mere, Pa., August. _McIlvaine._ I have found A. diminutivus so intimately associated with A. silvaticus that its being a dwarf form of the latter seemed more than probable. Its edible qualities are the same. =A. Rod´mani= Pk. =Pileus= rather thick, firm, at first convex, then nearly or quite plane, with decurved margin, smooth or rarely slightly cracked into scales on the disk, white or whitish, becoming yellowish or subochraceous on the disk, the flesh white, unchangeable. =Lamellæ= close, _narrow_, rounded behind, free, reaching nearly or quite to the stem, _at first whitish then pink or reddish-pink_, finally blackish-brown. =Stem= short, subequal, solid, whitish, smooth below the ring, often scurfy or slightly mealy-squamulose above; ring variable, thick or thin, entire or lacerated, at or below the middle of the stem. =Spores= broadly elliptical or subglobose, generally uninucleate, 5–6×4–5µ. =Plant= 2–3 in. high. =Pileus= 2–4 in. broad. =Stem= 6–10 lines thick. Grassy ground and paved gutters. Astoria, L.I. _Rev. W. Rodman_. Washington Park, Albany. May to July. This species is intermediate between A. campestris and A. arvensis, from both of which it may be distinguished by its narrow gills, solid stem and smaller, almost globose, spores. In size, shape of the pileus and general appearance it most resembles A. campestris, but in the whitish primary color of the gills and in the yellowish tints which the pileus often assumes, it approaches nearer to A. arvensis. * * * _Peck_, 36th Rep. N.Y. State Bot. I can now add my own testimony to that of Mr. Rodman as to its edibility. Its flesh is firm but crisp, not tough, and its flavor, though not equal to that of the common mushroom, is nevertheless agreeable, and its use as food is perfectly safe. _Peck_, Rep. 49. This species has grown freely for several years at Hull and Cohasset, Mass. It is usually found about June 1st, and is not seen again until early autumn. It is the handsomest mushroom I have seen, and its edible qualities are on a par with its appearance. _Macadam._ =A. hæmorrhoida´rius= Shulzer. _Gr_—discharging blood. =Pileus= 4 in. across, reddish-brown, fleshy, ovate then expanded, _covered with broad adpressed scales_, margin at first bent inward. =Flesh= when broken immediately blood-red. =Stem= 4 in. high, 1 in. thick, soon hollow, fibrillose, the solid base somewhat bulbous. =Ring= superior, large. =Gills= free, approximate, crowded, rosy-flesh-color, at length purple-umber. Very striking, 3–4 in. high. The pileus and the white stem become spotted blood-red when touched. The stem when young is adpressedly squamulose below, when full grown mealy, becoming smooth. _Fries._ =Spores= purple-brown, 7–8×5µ Massee; brown, elliptical, 5–6×4µ _Peck_. A rare or overlooked plant in United States, first recorded by Professor Peck, who found it but once, growing under a hemlock tree. Rep. 45.