Meliai
The dryads of ash trees were called the Meliai. The ash-tree sisters tended the infant Zeus in Rhea's Cretan cave. Gaea gave birth to the Meliai after being made fertile by the blood of castrated Uranus. Nymphs associated with apple trees were Epimeliad, and walnut-trees Caryatids.
Read more about this topic: Dryad