Helvella cf. griseoalba (N.S. Weber 1972) Spore dimensions differ from this collection and collections of H. costifera, with H. costifera having larger spores. Seems to be recognized as a species in this paper from Europe: “The genera Helvella and Dissingia (Ascomycota: Pezizomycetes) in Europe – Notes on species from Spain.” (A collection from Michigan USA was examined.) H. griseoalba is said to be in a clade (species complex) with the closely related H. costifera.

This collection of Helvella griseoalba had a shallow gray cup. White ribbed stem, with ribs extending to the margin of the cup. With pine, hardwoods nearby, moss present; early June.