Here's a Lisbon lemon I grew from a store bought lemon (Sticker on fruit had "Lisbon" plus a four digit number). This tree has no thorns at all. Millet I talked to you about it a while back. Ned was up Thursday and had a look at it as well... A real strange one for sure as Lisbon usually has more thorns than other varieties.

That would be potentially an awesome mutation, or perhaps a mislabeled Eureka. Only time will tell if we can't afford DNA testing.