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  1. Better hybrid hibiscus for Southern California
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 11-15
    Issue: Autumn 1964
    Date: 1964
    Page Range: 9-12
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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  2. The cultural potential of hibiscus in Southern California
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 19-22
    Date: 1969-1972
    Page Range: 85-90
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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  3. Hibiscus
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 6-10
    Issue: Spring 1958
    Date: 1958
    Page Range: 33-36
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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  4. Memoirs of a hibiscus hybridizer: part I
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 16-18
    Date: 1966-1968
    Page Range: 31-40
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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  5. Memoirs of a hibiscus hybridizer: part II
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 16-18
    Date: 1966-1968
    Page Range: 48-54
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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  6. Report on Hibiscus project
    By: Gast, Ross H.
    Type: Article
    In: Lasca leaves.
    Volume: 11-15
    Issue: Autmn 1964
    Date: 1964
    Page Range: 90-91
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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