ielmae_ Penzig., _Myx. Beut._, p. 34.
1909. _Physarum gulielmae_ Penzig., Torrend, _Fl. des Myx._, p. 208.
1911. _Physarum gulielmae_ Penzig., List., _Mycetozoa, 2nd ed._,
p. 76.

Plasmodium yellow; sporangia sub-globose, sessile, brownish-orange or
chestnut brown, rugulose, clustered or heaped, often with a yellow
membranous hypothallus; peridium membranous with clustered deposits of
yellowish-brown lime granules; capillitium abundant, the nodes angular,
branching, white; spores purplish brown, spinulose, 10-12 mu.

Reported from Java, Sweden, Switzerland.

PHYSARUM ECHINOSPORUM _List._

1899. _Physarum echinosporum_ List., _Jour. Bot._, XXXVII., p. 147.

This species is distinguished from the preceding chiefly in episporic
characters. "Spores purple, 8 mu, marked by strong ridges and spines," 8
mu.

Reported from Antigua.

PHYSARUM AENEUM (_List._) _R. E. Fries._

1898. _Physarum murinum_ var. _aeneum_ Lister, _Jour. Bot._, XXXVI.,
p. 117.
1903. _Physarum aeneum_ Lister, R. E. Fries, _Arkiv. Bot._, I., p. 62.

Sporangia sessile, sub-globose or plasmodiocarpous, pinkish-brown or
bronze, glossy; peridium double, the outer somewhat cartilaginous,
brittle, falling back from the shining, membranous inner wall;
capillitium dense, the nodules not large, brown, sometimes aggregated to
form a pseudo-columella; spores pale brownish-violet, nearly smooth, 6-8
mu.

Reported from West Indies, Bolivia.

=Related Genus=

TRICHAMPHORA _Junghuhn_, p. 12.

1838. _Trichamphora_, Junghuhn, _Fl. Crypt. Javanica_.

Sporangia discoidal, above concave, saucer-shaped, stipitate; the
capillitium variable, anon physaroid, badhamioid, or even as in
_Didymium_.

This genus is set up for the accommodation thus far of the single
species following. It differs from _Physarella_ in the apparently
constant discoidal shape, absence of trabecules, etc.

TRICHAMPHORA PEZIZOIDEA _Jungh._, _op. cit._

1838. _Trichamphora pezizoidea_ Jungh., _op. cit._
1854. _Didymium zeylanicum_ Berk. & Br., _Hook. Jour. Bot._, VI.,
p. 230.
1869. _Physarum macrocarpum_ Fuckel, _Symb. Myc._, p. 343.
1875. _Chondrioderma pezizoidea_ Rost., _Mon._, p. 424, tab. VIII.,
Fig. 122.
1876. _Badhamia fuckeliana_ Rost., _Mon._, _App._, p. 2.
1894. _Trichamphora pezizoidea_ Jungh., List., _Mycetozoa_, p. 89.
1911. _Trichamphora pezizoidea_ Jungh., List., _Mycetozoa, 2nd ed._,