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Authors whose works are in public domain in at least one jurisdiction

List of works by Peter Rubtzoff

A Flora of San Francisco, California ⬇️

scientific article published in 1958

A Phytogeographical Analysis of the Pitkin Marsh ⬇️

scholarly article

ADDITIONAL NOTES ON VERONICA ANAGALLIS-AQUATICA × CATENATA (SCROPHULARIACEAE)

scientific article published in 1977

Flora of San Francisco

scientific article published in 1958

New Distributional Records for California Flowering Plants of Aquatic and Moist Habitats ⬇️

scientific article published in 1975

Notes on Callitriche in Western North America ⬇️

scientific article

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