SDSU HERBARIUM

Herbarium Associated Projects

The SDSU plant collections primarily assist students and faculty of the University with research projects and teaching needs.
Many of the projects include phylogenetic analysis of plant taxa, ecological studies of habitats and plant communities, comparative floristic work in southern California, and plant taxonomic studies. The herbarium is also available for use by students from other universities, individuals from government agencies and environmental consulting firms, and the general public.

A major, ongoing project is the Checklist of the Vascular Plants of San Diego County. This work is in collaboration with Dr. Jon Rebman of the Botany Department at the San Diego Natural History Museum.

Other projects have included floristic surveys of Mission Trails Regional Park, the SDSU Santa Margarita Ecological Reserve,
Palomar Mountain State Park, Point Loma, and systematic studies of the genera Calyptridium, Cryptantha, Fritillaria, and Pogogyne.

Publications with specimens from the SDSU Herbarium used and cited:

      Benet-Pierce, N. and M. G. Simpson. 2010. Chenopodium littoreum (Chenopodiaceae): a new goosefoot from dunes of
            south-central coastal California. Madroño 57: 64–72.
      Hargrove, Lori and Michael G. Simpson. 2003. Ultrastructure of heterocolpate pollen in Cryptantha (Boraginaceae).
            International Journal of Plant Sciences 164: 137-151.
      Marsden, Kim L. and Michael G. Simpson. 1999. Eryngium pendletonensis (Apiaceae), a new species from southern california.
            Madroño 46: 55-58.
      Pierce, Nuri and Michael G. Simpson. 2009. Polyaperturate pollen types and ratios of heteromorphism in the monocot genus
            Conostylis R. Br. (Haemodoraceae). Australian Systematic Botany 22: 1-15.
      Rebman, J. P. and Simpson, M. G. 2006. Checklist of the Vascular Plants of San Diego County. 4th edition.
            San Diego Natural History Museum, San Diego, California.
      Simpson, M. G., M. Silveira*, and C. M. Guilliams.* 2010. Taxonomy of Calyptridium parryi (Montiaceae). Madroño 57: 154-160.