low, globose, very minutely warted, 8-9 mic. in
diameter. See Plate I, Fig. 19.

Growing gregariously on old damp logs; very common in this region.
Sporangium with the stipe 2-3 mm. in height, the stipe usually much
longer than the sporangium; the capillitium expands considerably after
the disappearance of the upper part of the sporangium. This species is
an Arcyria in every respect, except the spiral ridges, which wind about
the thread of the capillitium.

2. HEMIARCYRIA VARNEYI, Rex. Sporangium elongated ovoid, pale yellow,
stipitate; the upper part of the wall disappearing at maturity, leaving
a small cup-shaped persistent base. Stipe very short, dull brown.
Capillitium of very slender threads 3.2-3.5 mic. in thickness, dull
ochre in color, forming a network of small meshes, with numerous short
slightly clavate free extremities, which proceed from the peripheral
meshes; the spiral ridges seven or eight, winding unevenly, those of the
superficial threads minutely spinulose. Spores in mass pale yellow,
globose, even, 6-7 mic. in diameter.

Growing on old wood; Kansas, May Varney. Sporangium with the stipe about
1 mm. in height, the stipe very short. Dr. Rex, in Proceedings of the
Academy of Natural Sciences, Philadelphia, 1891.

3. HEMIARCYRIA ABLATA, Morgan n. sp. Sporangium obovoid to turbinate,
yellow or olive-yellow, stipitate; the wall rather firm, smooth and
shining, breaking away about the apex, leaving the greater portion
persistent. Stipe short, erect, yellow-brown to blackish in color,
arising from a thin hypothallus. Capillitium of threads, 5-7 mic. in
thickness, yellowish-ochre in color, more or less branched; the free
extremities very scarce, obtuse or slightly swollen; the spiral ridges
four or five, close, smooth or very minutely warted. Spores in mass,
yellow, globose, minutely warted, 8-9 mic. in diameter.

Growing on old wood of Elm, etc. Sporangium with the stipe 1.5-2.5 mm.
in height, the stipe variable in length, but not longer than the
sporangium, diameter of the sporangium .6-.8 mm. A half dozen threads
proceed from the inner wall of the stipe branch twenty-five or thirty
times, and afford scarcely half a dozen free ends.

4. HEMIARCYRIA STIPATA, Schw. Sporangia terete, elongated and flexuous,
closely packed together and lying upon one another, stipitate, from
bright incarnate to brick red or bay in color, smooth and shining; the
wall thin and fragile, soon disappearing, except a small cup-