*Calonge, Francisco D. (1998) "Gasteromycetes, I. Lycoperdales, Nidulariales, Phallales, Sclerodermatales, Tulostomatale" in Flora Mycologica Iberica, Vol 3, J Cramer, Berlin, Germany.
* Calonge, Francisco D. (1998) "Gasteromycetes, I. Lycoperdales, Nidulariales, Phallales, Sclerodermatales, Tulostomatale" in Flora Mycologica Iberica, Vol 3, J Cramer, Berlin, Germany.