Collection of about 1000 different original 1950s-80s photo slides of worldwide exotic plants by internationally famous botanist Dr. Alfred Byrd Graf. Graf travelled to remote areas across the world documenting and taking samples of rare and often previously unknown tropical plants, and wrote and illustrated several standard plant encyclopedias. He was considered the word's foremost authority on tropical plants and discovered over 100 new species of plants, used in medicine, industry and by gardeners. His most noted discovery was the white African violet. These originate from his personal working collection and have his handwritten notes on the holders. The slides have sharp and clear images, the holders have light wear. Price is $160 shipped. Money back guarantee of authenticity.
His Wikipedia bio
His New York Times Obituary
