The “Philip A. Munz Field Notebook, Plant Collections 5764–6599” is a meticulously documented record of botanical specimens collected by renowned American botanist Philip A. Munz. This field notebook, housed in the World Herb Library, offers a window into Munz’s extensive research and contributions to the understanding of plant species, particularly in the southwestern United States.

Philip A. Munz (1892–1974) was a distinguished botanist and taxonomist, best known for his work on the flora of California. He served as a professor of botany at Pomona College and later as the executive director of the Rancho Santa Ana Botanic Garden (now the California Botanic Garden). His scholarly endeavors led to the publication of significant works such as “A Manual of Southern California Botany” and “A California Flora,” which remain authoritative references in the field of botany.

The field notebook spans from collection numbers 5764 to 6599, documenting a diverse array of plant species. Each entry includes detailed information about the plant’s habitat, morphology, and ecological context. This comprehensive documentation not only aids in the identification and classification of plant species but also provides valuable insights into the ecological dynamics of the regions studied.

Munz’s field notes are characterized by their precision and thoroughness, reflecting his commitment to advancing botanical science. The “Philip A. Munz Field Notebook, Plant Collections 5764–6599” serves as an invaluable resource for researchers, educators, and enthusiasts interested in the flora of the southwestern United States and the historical development of botanical studies.