Sexual spores have not been reported. Subcellular organization of spores consists of a bilayered spore wall and one to three flexible inner walls. Germ tubes arise from a persistant, plate-like germination shield that is always assiociated with the innermost flexible wall. Thin-walled auxiliary cells with smooth to knobby surfaces, are produced on hyphae in the soil near the root surface. The outer layer and the laminate layer develop simultaneously, and often cannot be distinguished in juvenile spores without the assistance of Melzer's reagent.
Inner walls develop and the last stage is the formation of the germination shield.
Literature Cited Walker, C. and Sanders, F.E. 1986. The separation of Scutellospora gen.