olor; the elaters long
cylindrical, 3-4 mu wide, adorned with spirals four, which wind unevenly,
are perfectly smooth, and terminate in abrupt tips about twice the
diameter of the elater; spores yellow, under the lens yellow, minutely
and closely warted, globose, 12 mu.

The spores of this species resemble closely those of the preceding, but
the sporangium is at sight different in appearance and proportions and
the capillitium not the same at all. The elaters are never fusiform, the
apices always abrupt in their acumination, and the sculpture irregular
and uneven. In form the elater resembles that of _T. scabra_. The
description is drawn from specimens, _N. A. F._, 2495, with which,
however, specimens received from Dr. Rex and later collected exactly
correspond.

The elaters of uniform diameter, the apices abruptly narrowed to a blunt
point, turned to one side, will serve to distinguish this species from
the whole _T. botrytis_ group, some forms of which it outwardly
resembles.

We have beautiful specimens from the shores of Puget Sound.

New York.

12. TRICHIA ERECTA _Rex._

1890. _Trichia erecta_ Rex, _Proc. Phil. Acad._, p. 193.

Sporangia gregarious, often in clusters of two or three together, but
generally single, nut-brown, checkered with broad, conspicuous yellow
dehiscence bands, globose, 1/2 mm. wide, stipitate, stipe double the
sporangium, dark brown, solid; capillitial mass bright yellow, the
elaters cylindric, 3-4 mu wide, terminating in apices short and smooth,
adorned with spirals, four, coarsely spinulose, winding unevenly or even
branching and so united to one another! spore-mass yellow, spores by
transmitted light pale, globose, minutely warted, 12 mu.

Distinguished at sight by the peculiarly mottled peridium. _T. botrytis_
in its ochraceous forms sometimes shows tendency to the same thing, but
the checkered surface is here conspicuous. The elaters resemble those of
the preceding form, but are remarkably rough.

Rare. Adirondacks, New York.

13. TRICHIA DECIPIENS (_Pers._) _Macbr._

PLATE IV., Figs. 2, 2 _a_, 2 _b_.

1793. _Lycoperdon pusillum_ Hedwig, _Abh._, I., p. 35, Tab. iii.,
Fig. 2.
1795. _Arcyria decipiens_ Pers., _Ust. Ann. Bot._, XV., p. 35.
1796. _Trichia fallax_ Pers., _Obs. Myc._, I., p. 59, etc.

Sporangia gregarious, sometimes closely so, sometimes scattered,
turbinate, shining olive or olivaceous brown, stipitate; stipe generally
elongate, co