holds true notwithstanding that the common plant which everyone 
takes for “plicatilis” in this country has globose spores, while in Europe 
it is figured and described with elliptic spores. Has any one else noticed 
it? We would rather believe that the American plant is not “plica¬ 
tilis” than that the spores of the “same plant” should differ so radi¬ 
cally in the two countries. The spores of most Agarics have the same 
general shapes, viz :—globose, ovoid, elliptic, etc., but occasionally we 
meet a species with oddly shaped spores, and we shall now describe two 
such plants. 
107—MARASMIUS NIGRIPES. 
Pileus membranaceous, slightly gelatinous 
when wet, convex, becoming plane or usually 
reflexed when old. White. Gills white or 
pale rose-color, adnate, venosely connected. 
Stipe insitial, solid, tough, equal or 
slightly tapering down and black but covered 
with a dense coat of white mealiness which 
is easily rubbed off. Spores very peculiarly 
three or four angled. 
This plant at certain wet seasons in the summer is very abund¬ 
ant in our woods, growing attached to twigs or dead leaves. It was 
described by Schweinitz but does not agree with his description in two 
particulars. It is not umbonate and the stipe is not subbulbose. Yet, 
taking into account its abundance and the character of its peculiar black 
stipe covered with white farinosity, I think it is right to assume as 
Prof. Morgan has done that it is the plant Schweinitz had in view. It 
is usually classed as Marasmius, but in talking to Prof. Morgan con¬ 
cerning its peculiar spores and their 
differences from all other (usually ‘ ‘pip- 
shape’ ’) spores of Marasmius, and its sub- 
gelatinous pileus he suggested that it 
might be a Heliomyces. I sent speci¬ 
mens to Bresadola suggesting this and he 
replied : “It does not appear from the 
dried specimen to be a Heliomyces of 
which the pileus in drying becomes carti¬ 
laginous, whilst in your specimen it is 
membranaceous.” Schweinitz did not 
Spores of Marasmius nigripes. Micro-photograph observe the CUl'ioUS shaped Spores of this 
by Dr. Edward Thompson. plant. They are similar to the spores of 
Tricholoma goniosperma as illustrated by Bresadola (Fungi Triden- 
tini, plate 109), and also, I am informed by Bresadola, to his Nolanea 
etaurospora, but the shape is rarely met among agaric spores. 
108—COPRINUS ANGUEATUS. 
Pileus when young, hemispherical, even, striate, 'becoming con¬ 
vex and plicate sulcate (it being a veliformes) when mature, smooth, 
40 
Fig. 19. 
Marasmius nigripes, (natural size.) 
