| Noun | 1. | family Rhizopogonaceae - a family of fungi of order Hymenogastrales having round subterranean sporophores fungus family - includes lichen families Hymenogastrales, order Hymenogastrales - an order of fungi belonging to the class Gasteromycetes; has a distinct basidiocarp with a fleshy or waxy gleba (sometimes placed in subclass Homobasidiomycetes) false truffle - any of various fungi of the family Rhizopogonaceae having subterranean fruiting bodies similar to the truffle genus Rhizopogon, Rhizopogon - a genus of fungi having subterranean sporophores resembling tubers genus Truncocolumella, Truncocolumella - a genus of fungi belonging to the family Rhizopogonaceae |