Online research by Torreya Guardian Paul Camire.• U.S. Botanical Garden / Washington D.C.- According to their website they have a collection of specimens from the Atlanta Botanical Garden. Their plant database shows 3 plants. It appears they also received a collection from ABG, but perhaps not listed.
• U.S. National Arboretum / Washington D.C. - There is a collection of 66 trees at this location. Many that were grown from the Nicholson and Schwartz wild branchlet cuttings in Florida in 1989. Three trees are from Tom Dodd Nursery in Semmes, AL (appears defunct) and were received by the Arboretum in 1984 and 1985. Unknown seed production. (Waiting for a response from this Arboretum.)