Plague on Point Loma: Acacia cyclops (PDF)
Report for principal landowners, November 2024.
San Diego Museum of Art (PDF)
Presentation to a Private Audience, January 2023
Blood Meridian and San Diego (PDF)
Presentation for CNPS San Diego, May 2020
Paintings from the Land of Sunlight (PDF)
The new 36-page book available for purchase from San Diego Flora shown online in low-resolution format.
Paintings from the Land of Sunlight contains the text of a presentation by the author made on November 28, 2018 discussing 36 paintings from the 2007 book Land of Sunlight.
The 1849 Whipple Edition: From San Diego to Yuma and Back (PDF)
Presentation at the Anza-Borrego Desert State Park Visitor Center on February 27, 2016
Scientists on the La Playa Trail, 1769-1851 (PDF)
Presentation to the La Playa Trail Association in Point Loma on November 17, 2015
El Camino Real in 1850 (PDF)
Parry’s Journey by Mule from San Diego to Monterey
Parry’s Forgotten Discoveries 1849-51: The Shaw Agave, the Tecate Cypress, and the Engelmann Oak (PDF)
Presentation at Recon Nursery in Imperial Beach on November 15, 2014
The 1850 Discovery of the Torrey Pine (PDF)
Presentation at the La Jolla branch of the San Diego Public Library on September 27, 2014
Thomas Coulter’s 1832 Visits – Excerpt from 1830s Booklet (PDF)
Pages 12-17 of San Diego County Native Plants in the 1830s: The Collections of Thomas Coulter, Thomas Nuttall and H.M.S. Sulphur with George Barclay and Richard Hinds
Published Reviews of Parry’s California Notebooks 1849-51 and San Diego County Native Plants in the 1830s (PDF)
Reviews from three publications – the Journal of San Diego History, Fremontia, and Archives of Natural History (UK)
Some Manzanitas of San Diego County – Excerpt from Plant Book (PDF)
Pages 104-5 of San Diego County Native Plants 3d ed.
Some Clovers of San Diego County – Excerpt from Plant Book (PDF)
Pages 290-1 of San Diego County Native Plants 3d ed.