- an article from California Horticultural Journal, April 1968 (Vol. XXIX, No. 2). Our thanks to Cal Hort member Michael Sullivan for bringing this article to light and posting it on his San Francisco Trees website July 12,2022
Open a downloadable PDF ➜ April 1968 v29
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Clickable links on email address, URLs and web page references
California Horticultural Society 