ster, _Mycetozoa,
2nd ed._, p. 50.

Plasmodium dark red. Sporangia scattered or gregarious, globose, even,
or somewhat wrinkled, dark red, stipitate; stipe cylindric, even,
sub-concolorous or blackish; columella small or none; capillitium free
from spores, whitish, with a slight pinkish tinge; spores dark brown in
mass, dark red when separated, globose, smooth, 7.5-8.5 mu.

The capillitium is very delicate, and when cleared of spores the
knot-like thickenings are seen to be very small and of a dark red color,
to which is probably due the pinkish tinge which marks the whole. A part
only of the thickenings are filled with lime granules. The dark red
granules of the sporangium walls are abundant and appear to form a
continuous crust.

This is _P. atrorubrum_ Peck, and his description, _l. c._, has been
closely followed. The very brief description in _Grevillea_, however,
antedates the New York publication and, all inadequate as it is, no
doubt applies to the same thing.

Not rare. New York, Pennsylvania, Ohio, Missouri, Iowa.

25. PHYSARUM PULCHERRIPES _Peck._

1805. _Physarum aurantiacum_ var. _rufipes_ Alb. & Schw., _Consp.
Fung._, p. 94.
1829. _Diderma rufipes_ (Alb. & Schw.) Fries, _Syst. Myc._, III.,
p. 101.
1873. _Physarum pulcherripes_ Peck., _Bull. Buff. Soc. Nat. Hist._,
I., p. 64.
1873. _Didymium erythrinum_ Berk., _Grev._, II., p. 52.
1873. _Didymium ravenelii_ Berk. & C., _Grev._, II., p. 53.
1873. _Physarum petersii_ Berk. & C., _Grev._, II., p. 66.
1875. _Physarum schumacheri_ Spr. var. _rufipes_ Alb. & Schw., Rost.,
_Mon._, p. 99.
1894. _Physarum pulcherripes_ (Peck), Lister, _Mycetozoa_, p. 41.
1896. _Cytidium rufipes_ (Alb. & Schw.) Morg., _Jour. Cin. Soc. Nat.
Hist._, p. 81.
1899. _Physarum rufipes_ (Alb. & Schw.) Morg., Macbr., _N. A. S._,
p. 50.
1911. _Physarum pulcherripes_ Peck., List., _Mycetozoa, 2nd ed._,
p. 49.

Sporangia gregarious, dark-colored, sprinkled with orange flakes of
lime, globose, the wall thin, deciduous, stipitate; stipe slender,
erect, deep red, sometimes black below, pale or orange above, and
supported on a well-developed hypothallus; columella scant or none;
capillitium dense, the meshes and nodes unusually small and delicate,
the latter reddish or yellow; spore-mass black; spores by transmitted
light, violet-tinted, 8-10 mu., almost smooth.

The strikin