Lycoperdon acuminatum
With spores. (From Morgan.)

L. acumina´tum Bosc.—pointed. Peridium globose, then ovoid, with a mycelium of fine white fibers. Cortex a white soft delicate continuous coat, drying up into a thin furfuraceous persistent layer on the surface of the inner peridium. Subgleba obsolete; mass of spores and capillitium pale-olivaceous then dirty-gray; threads simple, hyaline, two to three times as thick as the spores. Spores globose, even, 3µ in diameter. Plate II, fig. 8. Peridium ¼-½ of an inch in height.

Growing on the mosses of old logs and about the base of living trees. New York, Peck; North Carolina, Curtis; South Carolina, Ravenel, Atkinson; Ohio, Morgan; Costa Rica, Oersted.

GENUS X.—BOVISTEL´LA Morg.

(Plate CLXXVIa.)

Section Bovistella
Ohiensis.

Showing cellulose and definitely limited subgleba and the free threads of the capillitium. (From Morgan.)

Mycelium cord-like, rooting from the base. Peridium subglobose, with a well-developed base; cortex a dense floccose subpersistent coat; inner peridium thin, membranaceous, dehiscent by a regular apical mouth. Subgleba cellulose, cup-shaped above and definitely limited, persistent; capillitium originating within the tissue of the gleba; the threads free, short, several times dichotomously (two-forked) branched, the main stem thicker than the diameter of the spores, the branches tapering. Spores small, globose or oval, even, pedicellate.