Mela is the second thing you will be gathering when raising your Extract Vitality Skill. It is a little berry bush that can only be found around Anturoon Crossing in Ishalgen. In order to Extract Mela you will need a Extract Vitality Skill of 10. Aside from just Extracting and Vendoring Mela it is used in the Cooking Profession.
NOTE: The Mela bush actually doesn't give you Mela but a different type of fruit called Raydam. This can be a bit confusing, luckily now you know!