“Miruenra gen peer a. Re . 
Peridium membranaceous, enclosing numerous minute sporangium1 k 
 Dodies bearing upon the surface a stratum of spores. > a 
This is a genus of einige che near Polysaccum. It is espetfally 
dedicated to its discoverer. Gs Se Miller. 
- Mineria werparica Ph. ) : 
x Peridia oval or ovate-conical, subobtuse, firm, externally minutely warty a . 
or mealy-furfuraceous, whitish, inclosing a mass of minute subglobose or 
slightly angular sporangioles adhering together, black externally, pallid 
__ within ; spores superficial on the sporangioles, globose, colored, .0005'— 00065" 
BS: in diameter. < Fee 
Panicles of Rhynchospora macrostachya. Wading River. Miller. ; 
ay This rare, but interesting fungus resembles in size and color the preceding — 
species, but ‘its interior structure is wholly different. The sporangioles appear 
to be composed of densely compacted or reticulated threads and cellular — 
matter. I have not been able to detect any investing membrane, the spores” 
appearing to rest directly upon the surface to which they give the black color. 
_ The peridium does not appear to have been ruptured naturally in any of the 
specimens. The cavity is only partly filled by the mass of sporangioles. 2 ‘ 
- Te om 
-Puysarum PSITTACINUM Dittm. 
Fallen leaves, decaying wood, bark and effete Hypoxylon. Adirondack — a 
Mountains. Aug. . Ty 
_ Paysarum ORNATUM Pk. 
i: Sporangia depressed or hemispherical, plane or slightly concave beneath, 
Aaa crs greenish-cinereous, dotted with small yellow granules, the empty walls whit- 
meee: 1 : F F 
ish; stem short, black or blackish-brown, generally longitudinally wrinkled 
Br 4 ; ee ; 5. 
ae when dry; columella none; capillitium with numerous yellow knot-like 
ao . spores globose, smooth, violet-brown in the mee -0004/—.0005’ 
-_—_ in diameter. Fs 
Decayimg wood. Albany. Aug. 3 
_ PHYSARUM ATRORUBRUM PA. aa 
Scattered or gregarious, stipitate; sporangia globose, even or somewhat 
wrinkled, dark-red; stem cylindrical, even, blackish or subconcolorous ; 
i eapillitium when cleared of the spores whitish, sometimes with a slight pink- 
ish tinge ; columella none; spores globose, smooth, dark-brown~in the mass, 
____ dark-red when separated, .0003 —.00035/ in diameter. “a 
By Decaying wood. Adirondack Mountains. Aug. ie 
my 
— , SP it oe ett 
A 
ty ae 
é 
rr 5X. 
fs 
- 
ee e”, 
an The plants are scarcely one line high. The capillitium is very delicate, 4 
"", and when cleared of the spores, the knot-like thickenings are seen to be very 
small and of a dark-red color, to which probably is due the pinkish tinge— = 
sometimes observed. A part only of the thickenings are filled with lime a 
. granules. The dark-red granules of the sporangium walls are abundant, and 
appear to form a continuous crust. > a 
PHYSARUM INZQUALIS Pk. sh 
Sporangia sessile, subglobose or irregular, sometimes elongated and con- 
fluent, red, abundantly dotted with minute scarlet granules; capillitium — 
ONS rod Ee 
Se. a 
