rees, conifers, etc., the finest, and
greatest variety, are from southern Missouri.

ORDER IV

=LYCOGALALES=

Fructification aethalioid; peridium membranaceous, tough, simple, without
vesiculose with protoplasmic masses, within gelatinous; the capillitium
of cortical origin, consisting of irregular lobate or branching tubules,
varying much in width, and marked by numerous corrugations, irregular
warts or bands; spores minute, ashen or pallid.

This order includes but a single genus,--

=Lycogala= _Micheli._

1729. _Lycogala_ Micheli, _Nov. Plant. Gen._, pp. 216, 217.
1753. _Lycoperdon_ Linn. _Syst. Nat._, in part.
1794. _Lycogala_ Persoon, Roemer, _N. Bot. Mag._, p. 87.

Micheli's description and figures, _Nov. Plant. Gen._, pp. 216, 217,
Tab. 95, leave no doubt but that this illustrious man had species of
_Lycogala_ before him when he described the genus. His figure 1. no
doubt portrays the second species in our present list. More recent
writers, from Persoon down, have used Micheli's designation, but
differed in regard to the limits to which the name should be applied. It
is here used substantially as in 1729. Fries and, after him, Rostafinski
make a mistake in quoting Retzius as writing _Lycogala_ (1769). Retzius
wrote _Lycoperdon sessile; Kongl. Vetenskaps Acad. Handling, foer Ar._
1769, p. 254.

=Key to the Species of Lycogala=

_A._ Aethalia irregularly globose.

_a._ Cortex minutely roughened or warted; about
12 mm. in diameter 1. _L. epidendrum_

_b._ Cortex smooth, size large 2. _L. flavo-fuscum_

_c._ Cortex rough; diameter 6 mm. or less 3. _L. exiguum_

_B._ Aethalia conical 4. _L. conicum_

1. LYCOGALA EPIDENDRUM (_Buxb._) _Fries._

1721. _Lycoperdon epidendron_, etc., Buxb., _En. Pl. Hal._, p. 203.
1753. _Lycoperdon epidendrum_ Linn., _Sp. Pl._, p. 1184.
1829. _Lycogala epidendrum_ (Buxb.) Fries, _Syst. Myc._ III., p. 80.

Aethalia solitary or clustered, depressed spherical, or, when crowded,
irregular, olivaceous or blackish, minutely warted, 3-10 mm. in
diameter, dehiscing irregularly, but more often near the apex; peridium
thin, but tough and persistent, made up of numerous agglutinated tubules
enclosing in their mashes peculiar cell-like vesicles; capillitium
parietal, consisting of long, branching, and anastomosing flattened
tubules extended inwardl