Hypholoma fasciculare
- Photographs and information on the bitter Sulphur Tuft Fungus.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/hypholoma_fasciculare.htm

Hypholoma capnoides
- Photographs of the Connifer Tuft, its description and other information.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/hypholoma_capnoides.htm

Kuehneromyces mutabilis
- Photographs of the Brown Stew Fungus, its description and other information.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/kuehneromyces_mutabilis.htm

Pholiota squarrosa
- Photographs of the Shaggy Pholiota, its description and other information.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/pholiota_squarrosa.htm

Pholiota alnicola
- Photographs of this yellowish species, its description and other information.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/pholiota_alnicola.htm

Stropharia aeruginosa
- Photographs and information on this greenish species.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/stropharia_aeruginosa.htm

Stropharia semiglobata
- Photographs and information on the Dung Roundhead.
- http://www.first-nature.com/fungi/id_guide/strophariaceae/stropharia_semiglobata.htm

Gallery of Psilocybe Mushrooms
- Paul Stamets provides a number of photographs of members of this genus with information on their habitats and characteristics.
- http://www.fungi.com/info/gallery/index.html

California Fungi: Hypholoma fasciculare
- Photograph and description of this species.
- http://www.mykoweb.com/CAF/species/Hypholoma_fasciculare.html

California Fungi: Psilocybe
- A list of those species in this genus to be found in California with photographs of 4 of them.
- http://www.mykoweb.com/CAF/genera/Psilocybe.html

California Fungi: Stropharia
- A list of those species in this genus to be found in California with photographs of 4 of them.
- http://www.mykoweb.com/CAF/genera/Stropharia.html

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

Stropharia
- Several photographs of colorful members of this genus.
- http://www.pilzepilze.de/galerie/v/Lateinisch/S/stropharia/

Gaston Guzman
- Dr. Gaston Guzman is the foremost authority in the world on the genus Psilocybe. Article on his work, with illustrations of several species.
- http://www.stainblue.com/guzman.htm

Psilocybe cyanescens
- Photograph and description.
- http://www.mykoweb.com/CAF/species/Psilocybe_cyanescens.html