e, yet to
be seen in Albany, Dr. Sturgis reports the species from Connecticut and
from the Isle of Wight! A small gathering is before me from Colorado.
Every sporangium is borne upon a calcareous pedicel, very short indeed,
but real. The _var. globosa_ referred to in the English text under _D.
leucopodia_ has not appeared so far as reported, on this side the sea,
but even such variety could scarcely in the hands of a collector take
the place of the form now under consideration.

Specimens of _D. subsessilis_ from Europe correspond remarkably with
those described by Drs. Peck and Sturgis. Mr. Lister would have our
species a synonym for _Lamproderma fuckelianum cracovense_ (Rost.) Cel.

Rare; from Connecticut to Colorado.

4. DIACHAEA BULBILLOSA (_Berk. & Br._) _List._

1873. _Didymium bulbillosum_ Berk. & Br., _Jour. Linn. Soc._, XIV.,
p. 84.
1898. _Diachaea bulbillosa_ Lister, _Jour. Bot._, XXXVI., p. 165.
1911. _Diachaea bulbillosa_ Lister, _Mycetozoa, 2nd ed._, p. 119.

Sporangia gregarious, globose, small, iridescent purple, stipitate;
stipe conical, white, sometimes brown, half-a-mm., half the total
height; columella clavate, white or brown; capillitium of purple-brown
threads united to form a lax net; spores violet-grey, marked with
scattered warts "6-8 in a row across the hemisphere", 7-9 mu.

Java, _Berkeley & Broome, op. c._ Toronto, Canada; cited here by
courtesy of Miss Currie who gives the spores 7.8 mu.

5. DIACHAEA THOMASII _Rex._

PLATE V., Fig. 6, 6 _a_.

1892. _Diachaea thomasii_ Rex, _Proc. Phil. Acad._, p. 329.

Sporangia gregarious, more or less crowded, purple and bronze,
iridescent, globose sessile or short stipitate; stipe, when present,
very short, thick, tapering rapidly upward, orange; hypothallus orange,
prominent venulose, continuous; columella ochre yellow, rough,
cylindric, tapering upward to one-half the height of the sporangium,
obtuse; capillitium lax, of slender brown rigid threads, radiating from
the columella in every direction, anastomosing to form a loose,
large-meshed network; spore-mass brown; spores by transmitted light
violaceous, minutely, unevenly warted, 10-12 mu.

The peculiar orange color of the calcareous deposits in stipe and
columella easily distinguish this species. The capillitium is also
distinctive, rigid, simple, and comparatively scant, lamprodermoid. Rex
calls attention to the fact that under low magnification the spores
appe