is a manure loving species, at least it is grown in earth mixed with manure 
and usually found only in pastures and fields where stock are kept, not in 
parks or woods. Our photograph represents the constant wild form about 
Cincinnati. The ring, it will be noticed, differs from the ring of other species 
photographed in sheathing the stem (peronate). One of our plants photo¬ 
graphed admirably shows this character. 
52 — PSALLIOTA CAMPESTR1S VAR. HORTENSIS. 
Pileus globose, then expanded, densely covered with 
pinkish fibrillose scales. Veil ample, flocculent, thin, form¬ 
ing a large pendulose ring. Gills at first white, then pink, 
at length reddish fuscous. Stem thick, hollow. 
This specimen was a large plant, pileus four to eight inches across when 
expanded. I have never met it growing, the plant was brought to me by 
Henry J. Koch, a florist. At first from its large size I supposed it was arven- 
sis the “Horse Mushroom” of Europe, and it agrees well with Fries’ plate of 
this species, but it can not be the arvensis of England as described by all 
English writers and illustrated by Cooke and others. I am therefore forced 
to refer it to a cultivated form of campestris, although it seems to me to differ 
essentially in its veil. Tt agrees well with Cooke’s figure of this variety of 
campestris. 
53—PSALLIOTA PLACOMYCES. 
Pileus sub-globose when young, explanate when mature, 
white, covered with numerous very small blackish brown 
scales. Gills close, free and somewhat remote, when very 
young white, as the veil breaks pink or rose color, when 
mature dark brown. Veil ample, somewhat reflexed, ex¬ 
ternally floccose. Stem very smooth, thickened somewhat 
bulbous below, tapering upward, containing a small pith or 
finally a small hollow. Spores small, 4x5 me., when fresh 
nucleate on one side. 
In this locality the plant is not rare, occuring in rich soil around yards 
and fields rather in preference to woods where, however, we sometimes find 
it. It is a bemtiful species, with its white pileus and numerous small, regu¬ 
lar dark scales; I know none prettier. When bruised the white pileus turn 
brown. To the touch the pileus is soft like kid leather. For a description 
of the peculiar veil see remarks on the genus. We distribute two photo¬ 
graphs, one of them undertimed in exposure so that the gills do not show', but 
it w r as necessary to so undertime it in order to give the proper effect of the ring 
and stem as well as the top of the pileus of the accompanying plant. Profes¬ 
sor Peck describes the scales as brown but illustrates them yellow. With us 
they are very dark brown, almost black, and contrast strongly w'itb the white 
pileus. 
54 —PSALLIOTA SILVATICA. 
Pileus explanate, even, densely covered with fibrillose 
appressed brown scales. Flesh white, slowly becoming 
brownish when cut or bruised. Gills free, pink when young, 
dark when old, broader behind. Stipe nearly equal , slender, 
