This collection consists of two 1935 field notebooks documenting botanical collecting trips in California by R. P. Allen.  Each notebook contains a chronological listing of specimens collected and an itinerary of collecting sites.

This collection consists of a notebook labeled "California Flora; A Catalogue of Plants collected by Mrs. R. M. Austin." Plant species are grouped by family, with no dates or collection numbers.

This collection includes correspondence, field notes, photographs, and other materials documenting the scientific career of Rimo Baciagalupi, California botanist and first curator of the Jepson Herbarium at the University of California, Berkeley.  Correspondence and papers from Bacigalupi's tenure as chairman of the Friends of the Regional Parks Botanic Garden are also included. A small box of material added to the collection after processing can be found in Series 6.

This collection consists of photocopies of northern California botanist Milo S. Baker's 43 field notebooks as well as a small amount of his correspondence, notes, and reprints.

The N. Floy Bracelin Papers documents the professonial and personal life of Nina Floy Bracelin (Bracie), herbarium assistant and assistant to botanist Ynes Mexia. This collection, which dates from 1930-1960, consists of correspondence, field notes, subject files, employment files, photographs, and personal papers.

This collection consists of Virginia Bufford's field notebook from Fall 1932, containing collections #500-578.

These twelve notebooks document J. Burtt Davy's botanical fieldwork from 1893-1901. Collections are primarily from California, but trips to Texas and Arizona also documented. Notebooks contain soil survey data and general botanical observations in addition to plant specimen collection data.

Minutes of the Chamisso Botanical Club, also known as the Chamisso Botanical Section of the Science Association of the University of California,. Minutes cover from 1891-1897. Consists of one bound volume of manuscript minutes and a typed transcription.

These five field notebooks document botanical collecting trips made by H. P. Chandler from 1901 to 1912 in Northern California.

This collection consists of V. K. Chesnut's field notebook and personal papers found within the notebook. Papers have been separated from the notebook.