What is "epimeliad"

In Greek mythology, the Epimeliads or Epimelides are nymphs who are protectors of apple trees. However, the word for "apple" in ancient Greek texts is also the word for " sheep". This translation gives Epimeliads as protectors of sheep and goats. Their hair is white, like apple blossoms or undyed wool. Like other dryads, they can shapeshift from trees to humans. They are also known to be the guards of the tree that the Golden Fleece was kept on.