or inclined, rising
from a thin hypothallus, tapering upward, white or cream color to
ochraceous. Capillitium a dense net-work of tubules, more or less
expanded at the angles, and almost entirely filled with white granules
of lime, leaving only here and there short, slender empty spaces. Spores
globose, nearly smooth, violaceous, 8-9 mic. in diameter.

Growing on old wood. Sporangium .5-.6 mm. in diameter, the stipe about
twice this length. The capillitium is rigid, with the abundance of lime
almost as in the genus _Badhamia_. Superficially the species much
resembles _Cytidium globuliferum_ or _Physarum compactum_, but the
disposition of the lime on the wall and in the capillitium is altogether
different.

21. PHYSARUM AURISCALPIUM, Cke. Sporangia subglobose, depressed,
substipitate; the wall a hyaline membrane with a thin, closely adherent
layer of minute granules of lime, over which are scattered large,
irregular, orange-red scales of lime. Stipe very short, sometimes almost
obsolete. Capillitium of tubules forming a loose net-work, with widely
expanded angles, and mostly filled with orange granules of lime, only
here and there short, slender, empty spaces. Spores globose, minutely
warted, dark violaceous, 11-13 mic. in diameter.

Growing on rotten wood; South Carolina, Ravenel. Sporangia .6-.8 mm. in
diameter, the stipe very short. Described in _Annals of the Lyceum of
Natural History of New York_, June, 1877. So fine a species ought to be
found again. Cooke's specimen was examined by Lister, _Mycetozoa_, p.
61.

EXPLANATION OF PLATE XIV.

Fig. 56.--Craterium minimum, B. & C. _a._ Sporangia x 5. _b._ Sporangium
with lid x 90. _c._ Capillitium and spores x 500.

Fig. 57.--Craterium maydis, Morgan. _a._ Sporangia x 5. _b._ Sporangium
x 90. _c._ Capillitium and spores x 500.

Fig. 58.--Physarum obrusseum, B. & C. _a._ Sporangia x 5. _b._
Sporangium x 90. _c._ Capillitium and spores x 500.

Fig. 59.--Physarum connexum, Link. _a._ Sporangia x 5. _b._ Sporangium x
90. _c._ Capillitium and spores x 500.

Fig. 60.--Physarum polycephalum, Schw. _a._ Sporangia x 5. _b._
Sporangia x 90. _c._ Capillitium and spores x 500.

Fig. 61.--Physarum lateritium, B. & C. _a._ Sporangia x 5. _b._
Sporangia x 90. _c._ Capillitium and spores x 500.

Fig. 62.--Physarum imitans, Racib. _a._ Sporangia x 5. _b._ Sporangium x
90. _c._ Capillitium and spores x 500.

Fig. 63.--Physarum relatum, Morgan. _a._ Sporangia x 5. _b._ Spor