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APPENDIX.

_Superior_, the upper surface; applied to the ring when near the apex of
the stem.

_Tetraspore_, _tetra_ Gr. four; spores.

_Theca_, cell-mother, the protoplasm of which originates by
segmentation; a certain number of spores, usually eight, held in
suspension in the protoplasm of the theca without being attached to each
other or to the cell walls.

_Thecaspore_, the spore thus encased.

_Tomentose_, downy, with short hairs.

_Torsive_, spirally twisted.

_Torulose_, a cylindrical body swollen and restricted alternately.

_Toxic_, poisonous.

_Trama_, the substance proceeding from the hymenophore, intermediate
between the plates (central in) of the gills of agarics.

_Transverse_, crosswise.

_Tremelloid_, jelly-like.

_Truncate_, ending abruptly, as if cut short; cut squarely off.

_Tubaeform_, trumpet-shaped.

_Tubercle_, a small wart-like excrescence.

_Tubular_, hollow and cylindrical.

_Turbinate_, top-shaped.

_Typical_, agreeing closely with the characters assigned to a group or
species.

_Umbilicate_, having a central depression.

_Umbo_, the boss