Helvella lacunosa
- Photographs of this grey species, commonly known as the Elfin’s Saddle, and an identification guide.
- http://www.first-nature.com/fungi/id_guide/ascomycetes/helvella_lacunosa.htm

Helvella crispa
- Photographs of this species and an identification guide.
- http://www.first-nature.com/fungi/id_guide/ascomycetes/helvella_crispa.htm