- Ron Kelley (Eastern Oregon University) for several suggestions to the taxonomic key and insight into taxonomy of the group
- Jon Rebman (San Diego Natural History Museum) for input on diagnostic features of Cryptantha taxa,
help with editing, and distribution maps of Baja Cryptantha
- Participants at the San Diego Plant Atlas Family Workshop in April 2007 and San Diego Natural History Museum
education programs in October/November 2007 for useful suggestions
- Herbaria at COLO, CAS, RSA-POM, SD, SDSU, and UC-JEPS for past loans of specimens
-Michael Charters excellent website on California Plant Nomenclature for etymologies
- The following organizations, from which distribution maps are reproduced:
The Jepson Interchange and Consortium of California Herbaria
San Diego County Plant Atlas
USDA Natural Resources Conservation Service
BajaFlora

All photographs are by: Michael G. Simpson or students at the SDSU Plant Systematics lab unless otherwise noted.