Bureau of Land Management, Arcata Field Office BLMAR. The small herbarium contains approximately 700 vascular plant specimens and over 300 bryophyte and lichen specimens dating from the early 1990s. The collection covers all the lands managed by the Bureau of Land Management Arcata Field Office in California, as well as other nearby public lands. Nearly all of the specimens were collected in Humboldt, Mendocino, or Trinity Counties. The collection includes some endangered and listed species as well as some potential range extensions and other species of interest. Contact: Jennifer Wheeler (jswheele@blm.gov)
http://www.blm.gov/ca/st/en/fo/arcata.html
California Academy of Sciences CAS, DS. Worldwide, nearly 1.9 million specimens (27% from California); more than 95% vascular seed plants; the remainder are ferns and a growing collection of bryophytes. Emphasis is on California, North America, Latin America (especially western and southern Mexico and the Galapagos) and Asia (especially China). Vascular plant families and genera that are particularly well represented include Acanthaceae, Brassicaceae, Carex, Eriogonum, Hydrophyllaceae, Lupinus, Asteraceae (particularly Madinae), Malvaceae, Melastomataceae, Onagraceae, Penstemon, Poaceae, Polemoniaceae and Quercus. The herbarium also contains the largest collection of ornamental plants in California. Contact: Debra Trock (dtrock at calacademy.org)
http://research.calacademy.org/botany/collections/
California Department of Food and Agriculture CDA. Founded in 1922, the Herbarium of the California Department of Food and Agriculture serves as a plant identification service for California state agencies, in particular the Department of Food and Agriculture. This includes invasive and horticultural plant identification and evaluation, identification of hosts for insects, plant pathogens and nematodes, as well as seed purity and viability certification programs. The collection focuses on those taxa that best support the diagnostic mission of our facility. This includes a large seed herbarium, general California weeds and native plants (particularly those that may occupy disturbed or agricultural areas), invasive pest plants from inside and outside of California and the U.S. (as well as their close relatives), plants from other areas with a Mediterranean climate, cultivated plants and their wild forms, specialty horticultural species, and general agricultural crops. Size of collection: 40,000 plus 40,000 seed accessions. Approximately 75% of the collection consists of native and naturalized plants of California. Notable collections include those of T. C. Fuller, B. Crampton (seeds), M. Ballou, G. F. Hrusa, and D. G. Kelch. Contact information:
G. Fred Hrusa (fhrusa at cdfa.ca.gov), Senior Plant Systematist
Dean G. Kelch (dkelch at cdfa.ca.gov), Associate Botanist
Deborah J. Meyer (dmeyer at cdfa.ca.gov), Senior Seed Botanist
cdfa.ca.gov/phpps/PPD/herbarium.html
California State University, Northridge SFV. Founded in 1958. 23,000 specimens (13,000 databased) of vascular plants, bryophytes, and a small number of lichens. Primary representation is from California (particularly southern California) but with specimens from other parts of North America and the world. Contact: James N. Hogue, Collections Manager. james.n.hogue at csun.edu
California State University, Sacramento SACT. California State University, Sacramento herbarium contains vascular plants mostly from California with an emphasis on Placer County flora. Size of collection: ~20,000 specimens. Contact information:
Shannon Datwyler (datwyler at csus.edu), Collection Manager
Travis Lawrence (tl584 at saclink.csus.edu), Data Manager
California Polytechnic State University, San Luis Obispo OBI. The Robert F. Hoover Herbarium, houses about 75,000 mounted plant specimens. Vascular plants comprise most of the holdings with smaller collections of algae and lichens. The herbarium is especially rich in Asteraceae. Approximately 80 percent of the specimens are from California, particularly central coastal counties. Most of the out-of-state collections are from the southwestern US and Mexico. Notable collections include those of Robert F. Hoover, David J. Keil, D. R. Miller, Rhonda Riggins (Lupinus), Matt Ritter (Eucalyptus), Shirley Sparling (algae), and Eric A. Wise (aquatics). Robert F. Hoover's collections were the basis for The Vascular Plants of San Luis Obispo County, California (1970). Contact: David J. Keil, Curator (dkeil at calpoly.edu)
California State University, San Bernardino CSUSB. California, with special attention to San Bernardino, Riverside, Orange, and San Diego counties. Size of collection: 4,800 specimens. Contact: Kimberlyn Williams (williams at csusb.edu)
California State University, Chico CHSC. Chico State Herbarium at California State University, Chico is the most complete repository of plant specimens from northeastern California. The emphasis is on the local flora, and includes a number of rare, threatened, and endangered plant species. Size of collection: 95,300, 77% from California. Director: Colleen Hatfield (chatfield at csuchico.edu)
Curator and data contact: Lawrence Janeway (LJaneway at csuchico.edu)
www.csuchico.edu/herbarium/index.shtml
Humboldt State University

HSC. Vascular plants from California, especially northwestern California. In addition, a large collection from southwestern Oregon and grasses from North America.
Size of collection: 100,000 specimens, 80% California.

Director: Michael Mesler (mrm1 at humboldt.edu)
Collection manager and data contact: Robin Bencie (mrb1 at humboldt.edu)
www.humboldt.edu/herbarium/index.html
Jasper Ridge Biological Preserve, Stanford University JROH. The Oakmead Herbarium at Jasper Ridge Biological Preserve was founded in 1996. All specimens were collected from the 1198 acres (485 ha) now comprising the Jasper Ridge Biological Preserve of Stanford University, San Mateo County, California. Size of collection: ~5500 specimens. Staff Scientist: Nona Chiriello (nonajrbp at stanford.edu)
Data Contacts: Ann Lambrecht (alambrec at stanford.edu)
Toni Corelli (corelli at coastside.net)
John Rawlings (rawlings at stanford.edu)
Diane Renshaw (dlr at ecosystem.com)
jrbp.stanford.edu
Joshua Tree National Park JOTR. The JOTR herbarium contains vascular plant, lichen, and bryophyte specimens from the area within the National Park boundary. The focus of this herbarium is to provide a synoptic collection representing a minimum of 90% of species known to occur in the Park. The collection is mainly used for resource management and educational purposes, however, researchers are encouraged to utilize the specimens as well. Contact: Tasha La Doux (ladouxtash at earthlink.net)
Pacific Grove Museum of Natural History PGM. The herbarium of the Pacific Grove Museum of Natural History contains approximately 7,500 specimens which are concerned principally with the vascular plants of Monterey County, California and the adjacent inner coast range mountains which border it, including collections from San Benito, western Fresno, and portions of Kings County. Ninety percent of the collections are from Monterey County, California. The herbarium includes the Monterey County collections of Beatrice F. Howitt, duplicates of specimens sent to CAS and identified by J.T. Howell resulting in: The Vascular Plants of Monterey County, California by Beatrice F. Howeitt and John Thomas Howell, The Wasmann Journal of Bioloogy, Vol. 22, No. 1, Spring 1964 and Supplement published by The Pacific Grove Museum of Natural History Assoc, July, 1973. Contact: pgmuseum at mbay.net
pgmuseum.org
Rancho Santa Ana Botanic Garden and Pomona College combined herbaria RSA, POM. Mainly vascular plants with worldwide scope, emphasis on arid regions, especially southern California and Baja California. Size of combined collections: 1,184,000 specimens, 39% from California. Director of Research: Lucinda McDade (Lucinda.McDade at cgu.edu)
Curatorial Assistant II: Joy England (jengland at rsabg.org)
Herbarium Workroom Manager: Erika Gardner (egardner at rsabg.org)
Conservation Botanist: Naomi Fraga (nfraga at rsabg.org)
Collections Manager: Mare Nazaire (mnazaire at rsabg.org)
www.rsabg.org
Riverside Metropolitan Museum CLARK. The Clark Herbarium (founded in 1949) serves as a reference library to the plant diversity and changes of Southern California. With almost 10,000 specimens, the Clark Herbarium includes dry botanical mounts, most of which were collected from the Riverside region and surrounding counties by J. C. Roos and other botanists between 1920 and 1990. A small collection of lichens and fungi was assembled during the 1930s by Edmund C. Jaeger, and was later donated to the Museum during his tenure as Curator of Plants. All these materials now represent an important database describing the distribution of native plant species in the southwestern U.S., which is now a vastly altered environmental setting. Data Contact: James Bryant (JBRYANT at riversideca.gov)
http://www.riversideca.gov/museum/na-plantcom.asp
Sagehen Creek SCFS. The herbarium is comprised of two related collections: "Herbarium of the Sagehen Creek Field Station" and "Flora of California." The Sagehen Creek collection includes just over 1,000 specimens and is fairly comprehensive of plants found on the reserve, which is approximately 8000 acres and encompasses a diverse cross section of the Sierra Nevada from the Pacific Crest (el. 8000 ft) to the eastern slope (el. 6400 ft). Habitats include yellow pine, mixed conifer, and red fir forests, as well as brushfields, scattered mountain meadows, and fens. The "Flora of California" collection has approximately 2,000 specimens and draws from a broader area, but is still focused on Sierra Nevada species. Director: Jeff Brown (sagehen at berkeley.edu)
Data Contact: Faerthen Felix (ffelix at berkeley.edu)
Data Contact: Erica Krimmel (ekrimmel at gmail.com)
sagehen.ucnrs.org/inventories.htm#plants
San Diego Natural History Museum SD. The herbarium holds over 200,000 specimens dating from the 1870s, primarily vascular plants, but including ~5000 marine algae. We are working on building our collection of local nonvascular plants, particularly lichens. Emphasis is on plants of the southwestern United States and northern Mexico, particularly southern California and the Baja California peninsula and its adjacent islands. Taxonomic specialties are Cactaceae and Crassulaceae. The collection is nearly 75% databased as of 2008. 50% of specimens are from California. Curator: Jon Rebman (jrebman at sdnhm.org) Collections Manager and data contact: Judy Gibson (jgibson at sdnhm.org)
http://www.sdnhm.org/science/botany/
Types database
San Diego Plant Atlas
San Diego State University SDSU. The SDSU herbarium houses over 19,000 specimens of vascular plants, used for teaching and research. The bulk (89%) of our collection is from California, 60% of these from San Diego County. Additional collections are primarily from the southwestern U.S., Baja California peninsula, Australia, Chile, and the south Pacific. Curator: Michael G. Simpson (msimpson at mail.sdsu.edu)
Herbarium web site: www.sci.sdsu.edu/herb
Plant Systematics Resources: www.sci.sdsu.edu/plants/plantsystematics
Plant Systematics at SDSU: www.sci.sdsu.edu/plants/lab
San Jose State University SJSU. Carl W. Sharsmith Herbarium. Worldwide, with emphasis on California. Some fungi and lichens. Size of collection: 14,691 vascular plant specimens, each prepared by Carl W. Sharsmith, 69% from California. Curator: Toni Corelli (corelli at coastside.net)
Assistant Curator: Teri Barry (teribarry2003 at yahoo.com)
Assistant Curator and Data contact: Lars Rosengreen (lars.rosengreen at sjsu.edu)
http://www.sjsu.edu/herbarium/
Santa Barbara Botanic Garden SBBG. Vascular plants, lichens, and mosses of California; emphasis on central coast region of California and the Channel Islands. Size of collection: 150,000 specimens, 80% from California. Contact: Dieter Wilken (dwilken at sbbg.org)
www.sbbg.org
Sweeney Granite Mountains Desert Research Center The Sweeney Granite Mountains Desert Research Center Herbarium is used primarily as a teaching herbarium for visiting researchers and classes. This facility is part of the University of California's Natural Reserve System, which serves a mission of promoting a better understanding and wise management of arid lands, especially the California deserts. This regional herbarium holds specimens from the eastern Sierra Nevada, Mojave, Great Basin, and Sonoran Desert bioregions, with the primary focus being the east Mojave Desert of California. Our collection is completely databased (Filemaker Pro) and available upon request. Contact:
Director: Jim André (granites at telis.org)
Assistant Director: Tasha La Doux (tashal at ucr.edu)
http://granites.ucnrs.org/
UC Berkeley JEPS (Jepson Herbarium: Vascular plants of California) and UC (University Herbarium: Plants from around the world). Size of combined collections: 2,200,000 specimens, 16% from California (databased). Collections Contact: Andrew Doran (andrewdoran at berkeley.edu)
Data Contact: David Baxter (dbaxter at berkeley.edu)
ucjeps.berkeley.edu
UC Davis DAV. Worldwide, with emphasis on California, North America, and neotropics (especially Ecuador and Baja California); Quercus, Fagaceae, and Arctostaphylos, Ericaceae of New World; Euphorbiaceae; Poaceae; Clarkia (Onagraceae); Lycianthes and Lycopersicon (Solanaceae); Stephanomeria and tarweed genera (Asteraceae); Navarretia (Polemoniaceae); Allium (Alliaceae); Trifolium (Fabaceae); Prunus (Rosaceae); Central Valley of California vernal pool species; weedy and poisonous species of California and Mediterranean-climate regions; range plants of California; alpine flora of western North America. Size of collection: 320,000 specimens, 50% from California. Director: Ellen Dean (eadean at ucdavis.edu)
Data contact: Tom Starbuck (tjstarbuck at ucdavis.edu)
herbarium.ucdavis.edu
UC Irvine IRVC. Western U.S., especially southern California and Orange County; Baja California, Mexico. Size of collection: 35,000 vascular plant specimens, 5000 lichens and algae. 86% from California. Director: Peter Bowler (pabowler at uci.edu)
UC Los Angeles LA. Worldwide collection of ca. 190,000 specimens of vascular plants, 25% from California (primarily southern California); 3% cultivated. Significant collections include: Apiaceae (Cymopterus, Lomatium), Lamiaceae (Monardella, Salvia, Trichostoma), Loasaceae (Mentzelia), Onagraceae (Camissonia, Clarkia, Epilobium), Ranunculaceae (Delphinium), and Primulaceae (Dodecatheon). Director: Philip Rundel
Contact: Barry A. Prigge (barryp at biology.lifesci.ucla.edu)
UC Riverside UCR. About 251,000 specimens total (241,339 databased): 225,826 vascular plants (both wild and cultivated) from the New World, especially the southwestern U.S. and Mexico, including 150,631 from California (5361 of those cultivated); c. 15,513 lichens, worldwide, but especially southern California; about 10,000 other (non-lichenized) fungi. Except for the general fungi and some mosses, the entire collection has been databased & 99% of the UCR native/naturalized CA vascular plant records are displayed in CCH: <1% of records are restricted. Records from outside CA can be accessed at www.herbarium.ucr.edu, as can more detailed information related to the records displayed by CCH. Director: Giles Waines
Data contact: Andrew Sanders (andrew.sanders at ucr.edu)
www.herbarium.ucr.edu
UC Santa Barbara UCSB. Mainly vascular plants of western North America, especially California; some worldwide. Size of collection: 100,000 specimens, 65% from California. Contact: Jennifer Thorsch (thorsch at lifesci.ucsb.edu
http://ccber.ucsb.edu/
UC Santa Cruz UCSC. California, with special attention to the Santa Cruz Mountains; vascular plants; lichen; fungi. Size of collection: 10,000 specimens, 88% from California Contact: Chris Lay (cml at ucsc.edu)
mnhc.ucsc.edu
Victor Valley College VVC. The A. Louise Baartz Memorial Herbarium. A. Louise Baartz was a former biology professor at Victor Valley College who began an herbarium collection under the supervision of Dr. Wilbur Mayhew of the University of California at Riverside. In 1973 she registered the Victor Valley College herbarium collection, then with only around 300 specimens, with the California Department of Agriculture. The collection now contains 5,000+ (2,000+ accessioned and georeferenced) specimens from the Mojave Desert, San Bernardino Mountains, the southeastern Sierra Nevada, southern San Joaquin Valley, and southeastern Arizona. Contact: herbarium at vvc.edu; Tim Thomas (timthom at verizon.net); Pam MacKay (mackayp at vvc.edu)
http://www.vvc.edu/academic/biology/herbarium.shtml
Yosemite National Park Herbarium YM. YM is a significant regional record, with 8,000 specimens, dating from the early part of the 20th century to the present with the bulk of collections dating from the 1920s to the 1960s. This is an actively growing herbarium, with over 3,000 vascular plant specimens added in the last ten years. The herbarium is a valuable component of the park's museum collections and is an essential tool for resource management: fire management, exotics programs, and vegetation management. It is also a valuable source of information to the scientific community about Yosemite's complex flora. Access to the collections is granted to researchers by advance appointment. Contact: Miriam_Luchans at nps.gov
http://www.nps.gov/yose/historyculture/collections.htm
 Extra-California institutions
Harvard University Herbaria HUH, consisting of A (Herbarium of the Arnold Arboretum), AMES (Oakes Ames Orchid Herbarium), GH (Grey Herbarium), & ECON (Economic Herbarium of Oakes Ames). 4000+ California type specimens and many historically important records. Directors: Donald Pfister (dpfister at oeb.harvard.edu) and Charles Davis (cdavis at oeb.harvard.edu)
Data Contact: Paul Morris (mole at morris.net)
Harvard University Herbaria
New York Botanical Garden NY. 15,000 California specimens New York Botanical Garden
Southwest Environmental Information Network SEINet. Specimens from UTC, ARIZ, DES, NMC, ASC, SJNM, UNM, CS, ASU, BRY, FLD, KHD, RM, UVSC, MNA, CCH, USON, WSC, FLFO, EPHR, RMBL, PRI, and TEUI Herbaria. 25,000 California specimens not otherwise represented in the consortium SEINet
Contact: Edward Gilbert (egbiodiversity at gmail.com)
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