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Abstract Detail



Systematics

Berbeo, Asseneth [1], Bobich, Edward [1].

Flora of the San Jose Hills.

The San Jose Hills are a distinct geologic feature of the San Gabriel River Watershed (Los Angeles County, CA) with relatively large open spaces, which make it an important portion of the wildlife corridor between the Peninsular Ranges and the Transverse Ranges. The open spaces contain continuous stands of the increasingly locally rare native coastal sage scrub, riparian, and woodland communities. In fact, the presence of the threatened Southern California black walnut (Juglans californica) woodland habitat and breeding grounds for the California Gnatcatcher (Polioptila californica) have resulted in much of the Hills being recognized as a Significant Biological Area. Further, the diversity of plant species found within the hills is relatively high; with 290 taxa representing 79 plant families, approximately 5% of the plant species found within California are represented. Because of the uniqueness of the Hills and the plant diversity, a flora of the San Jose Hills is being created based on field collections, which are being housed in the Cal Poly Pomona Herbarium (CSPU), and collections in other herbaria throughout the United States.
Currently, voucher samples are being collected in all areas of the San Jose Hills and identified using dichotomous keys. To this point, previously unrecorded species for the flora have increased the collection by approximately 2%. In addition to new collections, 285 records of collections in the San Jose Hills have been found through research of other herbaria. The records are concentrated mainly in the Voorhis Ecological Reserve (Cal Poly Pomona) and Puddingstone Reservoir and Dam in Bonelli Regional Park, areas which make up only 5% of the total area of the San Jose Hills. The relatively small area covered by historical data suggests that many new species have as yet to be catalogued for the San Jose Hills. Collection of specimens will continue through spring of next year; the catalog of plants will eventually be available to scientists and the general public through the Consortium of California Herbaria.


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1 - Cal Poly Pomona, Biological Sciences, 3801 W. Temple Ave., Pomona, CA, 91768, United States

Keywords:
flora
Floristics
California flora
San Jose Hills
Los Angeles County.

Presentation Type: Oral Paper
Session: 47, Systematic Methods, Herbarium Digitization & Floristics
Location: 203/Savannah International Trade and Convention Center
Date: Wednesday, August 3rd, 2016
Time: 5:00 PM
Number: 47014
Abstract ID:909
Candidate for Awards:None


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