rming a compact tuft. The capillitium is membranaceous at the angles;
spores very large compared with allied species, being 12 mu. The
specimens were too fully matured for more satisfactory description."

Such is the original description of this unique and interesting species.
The sporangia occur in close-set tufts or clusters, are distinct,
separate at their tips and bases only; perhaps not always at base. The
capillitium rises by branching from the columella, rather more prolific
than usual, and combines to form a distinct superficial net of large
even meshes. From the outer arcs of the bounding net spring rather long
acute processes which should support the peridium. This, however, is
altogether rudimentary. In most places there is no sign of peridium at
all, but here and there between contiguous sporangia opposite processes
unite and at their point of union a tiny circular disk of the peridial
membrane appears. At intervals, therefore, over the entire sporangium
are seen these small brown disks, each about equalling in diameter the
size of the average mesh. At other points the sporangia do not seem at
all coalescent, but where the opposing processes do meet the union is
perfect and the little disk seen edgewise looks like some delicate
counter strung upon a wire.

The interest attaching to this in view of what has been said about
_Amaurochaete_ and _Brefeldia_ is obvious.

Under the lens the spores and capillitium are concolorous, dark fuscous,
the spores distinctly verruculose, about 12.5 mu.

The original gathering here described was from New Jersey; twenty years
later Mr. Ellis was so fortunate as to find again fine specimens all on
oak bark. The sporangia are quite small, only 3 mm. high, when blown out
concolorous with the habitat.

2. STEMONITIS TRECHISPORA (_Berk._) _Torr._

PLATE XX., Figs. 11, 11 _a_, 11 _b_, 11 _c_.

1909. _Stemonitis fusca_ (Roth) Rost. var. _trechispora_ (Berk.),
_Fl. Myxom._, Torrend, p. 141.
1911. _Stemonitis fusca var. trechispora_ Torr., List., _Mycetozoa,
2nd ed._, p. 144.

Fructification in form of aggregations of more or less coalescent,
small, dark-brown or dull black, sessile sporangia; hypothallus
continuous, well-developed; columella black, gently tapering to a point
beneath the apex, the capillitial branches, irregular, few, but passing
into an open rather evenly-meshed net, the mesh several times the
spore-diameter, free-ending branch-ti