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54 Tuirty-rirst Report on Tae Srare Museum. — 
BorrycHiIuM LANCEOLATUM Angst. 
Pine Hill, Ulster county. 
AGarRicus RADICcATUS Relh. 
Two forms of this species occur here, one with a rather stout smooth stem, — 
the other with amore slender stem covered with minute scurfy particles. — 
The former agrees with the description of the species, the latter does not, 
This last is the most common form with us. 
Agaricus RUGosopiIscus Pk. ; 
This Agaric, when wounded, exudes a serum-like juice. It belongs tothe ~ 
subgenus Collybia rather than to Omphalia, and should be placed near A. 
SUCCOSUS. 
AGARICUS LACCATUS Scop. 
This wonderfully variable species sometimes has the lamellze notched behind 
precisely as in the subgenus Tricholoma. 
AGARICUS H&@MATOPUS Pers. j 
I find a non-ceespitose form of this species with red-margined lamella. 
Its red juice, however, will serve to distinguish it and show its true relations. 
AGARICUS SARCOPHYLLUS PA. 
This species, which was discovered in 1869, and had not since been found 
by me, reappeared this season in a pasture near Ticonderoga. It is very 
rare. 
AGARICUS ARVENSIS Schaff. 
In an oat field, Ticonderoga. 
AGARICUS SEROTINOIDES Pk. 
I am satisfied that this is a mere variety of A. serotinus, and should not be 
kept distinct. It is probable also that A. perplexus Pk. is only an American 
variety of A. sublateritius, from which it scarcely differs except in the color of 
the lamelle. 
CopRINUS ANGULATUS PA. 
The description of this species was drawn up from dried specimens, and is 
therefore inaccurate. It is here revised. 
Pileus thin, campanulate or conyex, rimose-suleate, sub-fuscous, disk squa- 
mose, with a few brownish sub-persistent verruce ; lamellz narrow, close, free ; 
stem equal or slightly tapering upward, hollow, white ; spores black, triangu- 
lar-ovate, compressed, .0003’—.0004' long, .0003/ broad, .0002° thick. 
OANTHARELLUS AURANTIACUS Lr. 
Center. A variety with the lamelle nearly white. 
Troaia Atni Pk. 
The spores are very minute, narrow, cylindrical, slightly curved, colorless, 
.0002'—.00025’ long. . 
PoLyPorus ScUTELLATUS Schw. 
This species, as it occurs with us, is generally dimidiate, and more or less” 
ungulate. ‘The pores are not distinctly rhomboidal in most cases, nor have I 
seen them changed toa black color. In ungulate specimens they are elongated, — 
and, in length, much exceed the thickness of the hymenophorum. In the young 
