The columella reduced to a thin alutaceous layer of granules of lime, forming the base of the plasmodiocarp.
In the sporangial presentation the capillitium is intricate delicate; in the plasmodiocarp, rigid, dark-colored, etc.
The columella a thin alutaceous, granulose-roughened layer, extending along the base of the plasmodiocarp.
plasmodiocarp an irregular patch, one to several centimeters in extent, the strands of the net about .5 mm.
Sporangia simple and subglobose, or plasmodiocarp, rarely combined into an thalium.
plasmodiocarp very much flattened, longitudinally creeping and reticulate or altogether widely effused; hypothallus none.
The plasmodiocarp forms very much flattened irregular patches from a few to several millimeters in length or extent.
Sporangia always sessile, simple and regular or plasmodiocarp, sometimes united into an thalium.