North American Fruit Explorers mailing list at ibiblio

["Alan Haigh" <alandhaigh@gmail.com>]

Whenever I've tried finding varieties of grafted fruit trees I have found "Fruit, Berry and Nut Inventory" by Seed Savers Exchange to be very useful although variety descriptions are often open to debate, especially when they use quotes from the propagators without revealing the source (see Atlantic Queen pear).