Marsileas are very easy to germinate from their sporocarps. Submerged leaves bearing sori that are surrounded by basifixed membranous indusia (sporocarps). The Indigenous Australians once made a porridge of pulverized "Marsilea" sporocarps called "nardoo". "G. aggregatum" has sporocarps containing spores which are not closely grouped. Hysterangiales that form sporocarps similar to true truffles. These underground fungi are also called sporocarps or truffles. Ectomycorrhizal fungal sporocarps are the staple diet of the northern bettong. The sporocarps (fruit bodies) are watery white and gelatinous with small, white, mineral inclusions. Species form hypogeous sporocarps commonly referred to as "false truffles". Sporocarps of extant myxogastrid slime mould genus "Stemonitis" are known. Unlike a few "Marsilea" species, "M. minuta" sporocarps mature above ground. The resemblance of the sporocarps to peppercorns gives the family its common name of "pepperwort". Up to 50 sporocarps have been observed around a single mound. Female sporocarps are much smaller, containing one sporangium and one functional spore. Unlike other ferns, the spores in this family are produced inside sporocarps.