Common Trees of Puerto Rico and the Virgin Islands By Elbert L. Little, Jr. & Frank H. Wadsworth

First Edition (1964) — U.S. Department of Agriculture, Forest Service, Agriculture Handbook No. 249 This monumental volume spans 527 pages and presents descriptions and illustrations for approximately 250 common tree species (native and introduced) across Puerto Rico and the U.S. Virgin Islands. Intended as a field guide for foresters, ecologists, and naturalists, it bridges scientific rigor and regional botanical knowledge in a form that remains deeply relevant today. A defining reference for Caribbean dendrology, this book has become harder to find in well-preserved copies. Its age, specialized subject matter, and limited print runs make intact editions increasingly rare.