Obscure pelargonia by mail from Geraniaceae

I should paywall this but not gonna! I learned from my favorite geranium and pelargonium grower at the Huntington plant sale that the heads order from Geraniaceae, an enigmatic one-person nursery in Marin. The website is worth a visit just for A+ plant writing. You order by email, receive plants wrapped in damp newspaper, and send a check.