5-6.5u long. The caps are two to four inches broad and
the stem is three to five inches long.

They are found in lawns or in thin woods. They are much more abundant in
hemlock woods though they are frequently found in mixed woods in which
there are hemlock trees. The behavior of the veil is very similar to A.
arvensis and A. silvicola and indeed this plant seems to be very
closely related to these species. It is found from July to September.

_Agaricus cretaceus. Fr._

THE CHALK AGARIC. EDIBLE.

Cretaceus, relating to chalk.

The pileus is entirely white, fleshy, obtuse, dry; sometimes even,
sometimes marked with fine lines around the margin.

The gills are free, remote, quite ventricose, narrowed toward the stem,
crowded, white, and only in mature plants do they become brownish.
Spores, 5-6x3.5u.

The stem is two to three inches long, even, smooth, firm, tapering
toward the cap, hollow, or stuffed with a fine pith, white.

It is found on lawns and in rich places. I find it more frequently in
rich stubble fields. It makes a rare dish. Found in August and
September.

_Agaricus subrufescens. Pk._

THE SLIGHTLY RED MUSHROOM. EDIBLE.

Subrufescens, sub, under; rufescens, becoming red. The pileus is at
first inclined to be hemispherical, becoming convex or broadly expanded;
silky fibrillose and minutely or obscurely scaly, whitish, grayish, or
dull reddish-brown, usually smooth and darker on the disk. Flesh white
and unchangeable.

The gills are at first white or whitish, then pink, finally
blackish-brown.

The stem is rather long, often somewhat thickened or bulbous at the
base, at first stuffed, then hollow, white, the ring is scaly on the
under side, mycelium whitish, forming slender branching root-like
strings. The spores are elliptical. _Peck_, 48th Rep. N. Y. State Bot.

The reddish-brown color is due to the coating of fibrils that covers the
cap. In the center it does not separate into scales, hence it is
smoother and more distinctly reddish-brown than the rest. Its veil
resembles that of the A. placomyces, but instead of the lower surface
breaking into radial portions it breaks into small floccose flakes or
scales.

This species is found about greenhouses, and is frequently found in
large clusters.

Dr. McIlvaine says: "This species is now cultivated and has manifest
advantages over the market species--it is easier to cultivate, very
productive, produces in less time after planting the spaw