Massachusetts Horticultural Society
The Massachusetts Horticultural Society, sometimes abbreviated to MassHort, is an American horticultural society based in Massachusetts.[https://mblc.state.ma.us/directories/libraries/library.php?record_id=2197] It describes itself as the oldest formally organized horticultural institution in the United States. As of 2014, it had some 5,000 members. Provided by Wikipedia
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