Calvatia excipuliformis
- Photograph of the Pestle Puffball and a description.
- http://www.first-nature.com/fungi/id_guide/gasteromycetes/calvatia_excipuliformis.htm

Lycoperdon perlatum
- Several photographs of the Common Puffball and an identification guide.
- http://www.first-nature.com/fungi/id_guide/gasteromycetes/lycoperdon_perlatum.htm

Calvatia gigantea
- Photographs of the Giant Puffball and a description.
- http://www.first-nature.com/fungi/id_guide/gasteromycetes/calvatia_gigantea.htm

Lycoperdon pyriforme
- Photographs of the Stump Puffball and an identification guide.
- http://www.first-nature.com/fungi/id_guide/gasteromycetes/lycoperdon_pyriforme.htm

Lycoperdon echinatum
- Photographs of the Spiny Puffball and a description.
- http://www.first-nature.com/fungi/id_guide/gasteromycetes/lycoperdon_echinatum.htm

Calvatia craniformis
- Photograph of this skull-shaped puffball.
- http://botit.botany.wisc.edu/toms_fungi/calvatia3.html

Calvatia
- A fun look at what can be done with giant puffballs besides eating them.
- http://botit.botany.wisc.edu/toms_fungi/calvatia.html

Calvatia cyathiformis
- Photographs of this puffball when mature and as a dead base after the spores have been released.
- http://botit.botany.wisc.edu/toms_fungi/calvatia2.html

California Fungi: Handkea
- The principal characteristics of this genus of puffballs and a list of those species found in California with photographs of 3 of them.
- http://www.mykoweb.com/CAF/genera/Handkea.html

Calbovista subsculpta: Sculptured Giant Puffball
- Photograph and information on this particular specimen which grew in British Colombia.
- http://www.uoguelph.ca/~gbarron/MISCE2002/calbovis.htm

Bovista plumbea
- Several photographs of this globular species.
- http://www.pilzepilze.de/galerie/v/Lateinisch/B/bovista/plumbea/

Vascellum pratense
- Photographs of an old fruitbody of this puffball and magnified images of the spores and paracapillitium.
- http://www.bioimages.org.uk/html/R157271.HTM

Handkea utriformis
- Photographs of the fruitbody of this species, commonly known as the Mosaic Puffball.
- http://www.bioimages.org.uk/html/R145946.HTM