[6] Bonner states that soil invertebrates and rain mainly disperse spores as they are sticky and unlikely to be carried by air currents.

Brefeldia maxima is one of the largest of the slime molds and its distinctive feature is the presence of multicellular vesicles within the capillitium.

[11] The plasmodium emerges from soil and leaves as a pure white structure, often very large and exhibiting rhythmic cytoplasmic streaming which helps transport chemicals within the organism.

The plasmodium may move some distance before forming the aethalium or sporangial phase,[12] of an equal size, 4–30 cm in its longest dimension, 5–15 mm thick, carried upon a widespread, silvery, shining hypothallus, purplish black.

The capillitium, the network of thread-like filaments in which the spores are embedded within sporangia is abundant, the threads dark, netted, the nodes bearing multicellular vesicles, the whole borne upon, but often breaking away from the flattened and irregular, columellate basal strands.