San Francisco State University, Harry D. Thiers Herbarium (SFSU)

The primary research focus of the Harry D. Thiers Herbarium is mycology. Most of the early collections were made by Harry Thiers and his students, and later by Dennis Desjardin and his students. Specialties include fleshy fungi of North America, Hawai'i, Indonesia, and southeast Asia; California lichens, bryophytes, and flowering plants, with an exceptionally large collection of Arctostaphylos. The herbarium was established in 1959 as the SFSU Herbarium, and was renamed the HDT Herbarium following Harry's retirement in 1989.
Contacts: Dennis Desjardin,
Collection Type: Preserved Specimens
Management: Live Data managed directly within data portal
Global Unique Identifier: 6d7928b7-550a-4842-9194-317610d85e74
Digital Metadata: EML File
Collection Statistics
  • 40,701 specimen records
  • 28,349 (70%) georeferenced
  • 34,496 (85%) with images (40,281 total images)
  • 359 GenBank genetic references
  • 33,486 (82%) identified to species
  • 93 families
  • 366 genera
  • 3,354 species
  • 3,621 total taxa (including subsp. and var.)
Extra Statistics
Taxon Distribution
Taxon Distribution