It is a small but very beautiful form, at first sight to be mistaken for a short _S. fusca_, though much more intensely black. The capillitium is concolorous, the inner network of rather few open meshes, the outer of large hexagonal openings, the arcuate threads of which are remarkable for the size, and especially the number, of the peridial processes, as many as five or six sometimes appearing along one side of a single mesh. The stipe is very short, and the columella runs as a straight, gradually diminishing axis to the very apex of the sporangium. Total height 3-5 mm. The English _Monograph_ includes this with _S. fusca_; but it seems quite distinct in size, habit, color, etc., and has been found in the mountainous regions of Virginia and North Carolina, as well as about Philadelphia. 7. STEMONITIS VIRGINIENSIS _Rex._ 1891. _Stemonitis virginiensis_ Rex, _Proc. Phil. Acad._, p. 391. 1899. _Stemonitis virginiensis_ Rex, Macbr., _N. A. S._, p. 130. 1911. _Comatricha typhoides_ Rost., List., _Mycetozoa, 2nd ed._, p. 158. Sporangia erect, gregarious, from a common hypothallus, generally clustered, cylindric or elongate-ovate, stipitate; stipe black, shining; columella reaching the apex, where it blends with the capillitium; capillitium delicate, the meshes of the net small, scarcely greater than the diameter of the spores; spore-mass umber brown; epispores reticulated, with ten or twelve meshes to the hemisphere, 5-7 mu. This is a beautiful, and, as it seems to us, a very distinct, species. The markings on the epispore are sufficient to identify it. These are conspicuously banded somewhat as the spores of _Trichia favoginea_, for example. In habit, size of the sporangia, and capillitial branching, this species recalls _Comatricha typhoides_ (Bull.) Rost. All the sporangia examined are, however, plainly stemonitis in type, possessing the characteristic superficial net. Until further light this may stand as offered in the first edition. Miss Lister prefers to enter it, banded spores and all, with the comatrichas, on account of color, size and occasional default (?) of surface net. Virginia, _Dr. Rex._ 8. STEMONITIS WEBBERI _Rex._ PLATE XI., Figs. 6, 7, 8. 1891. _Stemonitis webberi_ Rex, _Proc. Phil. Acad._, p. 390. Sporangia clustered, usually in small tufts 1 cm. wide, rusty brown in color, 8-10 mm., including the stipe, which is jet black, shining, and much expanded at the base; hypothallus continuous, well-developed, a thin, transparent pellicle; columella black, tapering upward, giving off at intervals the capillitial branches, and becoming dissipated just below the obtuse apex; inner capillitial network very open, the branches far apart, anastomosing but a few times before breaking into the surface net to form large, irregular meshes, 50-125 mu; spores minutely roughened, fuscous, 8-9 mu.