ually rupturing irregularly. Spores
globose, usually some shade of umber or olivaceous, rarely violaceous.

The species of this order are the simplest of the Myxomycetes; the
sporangium, with a firm, persistent wall contains only the spores. There
is no trace of a capillitium, unless a few occasional threads in the
wall of Tubulina prefigure such a structure. To the genera of this order
is appended the anomalous genus Lycogala, which seems to me better
placed here than elsewhere.

TABLE OF GENERA OF LICEACEAE.

1. LICEA. Sporangia simple and regular or plasmodiocarp, gregarious;
hypothallus none.

2. TUBULINA. Sporangia cylindric, or by mutual pressure becoming
prismatic, distinct or more or less connate and aethalioid, seated upon a
common hypothallus.

3. LYCOGALA. AEthalium with a firm membranaceous wall; from the inner
surface of the wall proceed numerous slender tubules, which are
intermingled with the spores.

I. LICEA, Schrad. Sporangia sessile, simple and regular or
plasmodiocarp, gregarious, close or scattered; hypothallus none; the
wall a thin, firm membrane, sometimes thickened with scales or granules,
breaking up irregularly and falling away or dehiscent in a regular
manner. Spores globose, variously colored.

The sporangia are not seated on a common hypothallus; they are,
consequently, more or less irregularly scattered about on the
substratum.

1. LICEA VARIABILIS, Schrad. Plasmodiocarp not much elongated, usually
scattered, sometimes closer and confluent, somewhat depressed, the
surface uneven or a little roughened and not shining, reddish-brown or
blackish in color; the wall a thin, firm pellucid membrane, covered by a
dense outer layer of thick brown or blackish scales, rupturing
irregularly. Spores in mass pale ochraceous, globose or oval, even or
nearly so, 13-16 mic. in diameter.

Growing on old wood. Plasmodiocarp 1-1.5 mm. in length, though sometimes
confluent and longer. The wall is thick and rough, not at all shining.
It is evidently the species of Schweinitz referred to by Fries under
this name.

2. LICEA LINDHEIMERI, Berk. Sporangia sessile, regular, globose,
gregarious, scattered or sometimes crowded, dark bay in color, smooth
and shining; the wall a thin membrane with a yellow-brown outer layer,
opaque, rupturing irregularly. Spores in mass bright bay, globose,
minutely warted, opaque, 5-6 mic. in diameter.

Growing on herbaceous stems sent from Texas. Sporangia about .4 mm.