Collection place
- CA-But-48, Butte County, California67
- CA-But-5, Durham, Butte County19
- CA-But-51, Butte County, California2
- CA-But-52, Butte County, California1
- CA-But-57, Butte County, California6
- CA-But-59, Butte County, California31
- CA-But-6, Butte County, California26
- CA-But-60, Butte County, California1
- CA-But-63, Butte County, California8
- CA-But-65, Butte County, California2
- CA-But-66, Butte County, California3
- CA-But-7, Butte County, California1
- CA-But-NL-1, Enterprise, Butte County10
- CA-But-NL-2, Butte County, California12
- CA-But-NL-3, Butte County, California13
- CA-But-NL-5, Butte County, California2
- CA-CCo-1, Bethel Island, Contra Costa County8
- CA-CCo-10, North Richmond, Contra Costa County1
- CA-CCo-11, Contra Costa County, California1
- CA-CCo-12, Contra Costa County, California4