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$4 THIRTY-EIGHTH REPORT ON THE STATE Museum. 
Tolypella intertexta, Allen. 
Seneca lake. Allen. 
Chara hydropitys, dA. Br. v. genuina, A. Br. 
Saranac river. Aug. Paul Allen. 
Agaricus clypeolarius, Bull. 
Copses and thin woods. Karner. Oct. This species was reported in 
the Twenty-third Museum report, but erroneously, as the specimens were 
afterward found to belong to A. metulesporus, a species which closely. 
resembles this in external characters. ‘The specimens now under con- 
sideration are believed to belong to the true A. elypeolarius. The 
spores in them are much smaller than those of A. metulesporus, In 
many cases the spores furnish important characters for distinguishing 
species of Agarics, and it is to be regretted that European mycologists 
have so generally neglected them in their descriptions. 
Agaricus (Tricholoma) terrzolens, 2. sp. 
Pileus thin, convex or nearly plane, slightly silky fibrillose, whitish 
with a brownish or grayish brown slightly prominent disk , lamellz 
sub-distant, emarginate, white, stem equal, slightly silky, shining, stuffed 
-o1 hollow, white ; spores subglobose or broadly elliptical, .coo25 to.0003 
in. long, .0002 to .00025 broad ; flesh white, taste and odor strong, un- 
pleasant and earthy. 
Plant 1 to 2 inches high, pileus 10 to 15 lines broad, stem about z 
lines thick. 
Under ground hemlock, Taxus Canadensis. South Ballston, Saratoga 
county. Sept. 
The species belongs to the section SERICELLA, and is closely related 
to A. inamenus, from which it is separated by its smaller size, less 
distant lamellz, stuffed or hollow stem and different odor. Nor do I 
find the stem radicating or the disk tinged with yellow as in that species. 
Fries compares the odor of A. tnamenus to that of Geranvwm Roberti- 
anum, but the odor of our plant is decidedly earthy, resembling that of 
vegetable mold or mossy rocks. Its taste is similar to its odor, and re- 
mains in the mouth and throat a long time. 
Agaricus (Mycena) immaculatus, x. sp. 
Pileus membranaceous, conical or sub-hemispherical, glabrous, slightly 
striate on the margin, pure white ; lamella moderately broad, distant, 
adnate or uncinate-decurrent, white; stem slender, pellucid, white, 
glabrous, generally villose strigose at the base, and slightly thickened at 
the apex ; spores oblong or cylindrical, .o003 to .00035 in. long, .ooo12 
broad. 
Plant 8 to 18 lines high, pileus 2 to 4 lines high and broad, stem 
scarcely .5 line thick. 
Among moss and fallen leaves and on naked ground... Adirondack 
mountains. June. 
The species belongs to the section ADONIDE# and is related in size 
