• Fruit tree varieties include nuts, legumes and berries.over-laden fruit tree image by Alfonso d'Agostino from Fotolia.com
  
  Fruit trees appear in many parts of the world and vary by locale based on each variety's climate needs. Fruit varieties come in assorted sizes, colors and shapes and develop according to the physical characteristics of trees and methods of fertilization. Both fruit and nuts appear within fruit tree classifications, with some types forming inside protective coverings while others grow and develop in the open air.
  
  

Fleshy Fruit Tree Varieties

• Fleshy fruit tree varieties include berries, pomes and drupes, all of which have similar visible characteristics though their development stages can differ, according to Palomar Community College. Berry fruit trees include pomegranate, persimmon and guava. Pome type trees include apple, pear and quince. Drupe fruit trees include plum, cherry, mango and date. According to the University of Nevada, the fleshy part of a fruit is known as the pericarp, which originally existed as an ovary wall during early development. By the time a piece of fruit ripens, or matures, the pericarp consists of an outer skin, a middle fleshy layer and an inner compartment that holds the fruit seed.
  
  

Dry Fruit Tree Varieties

• Dry fruit tree varieties include legumes, nuts and seeds. Dry fruit also develops from the pericarp or ovary wall materials, however the outer, middle and inner layers are dry and appear as one solid layer according to the University of Nevada. Legume tree types include the orchid, banana and coral. Nut varieties include the chestnut, acorn and hazel nut. Seed fruit trees include the magnolia, maple and elm. According to Palomar Community College, dry fruits grow inside protective coverings, or pods that have visible seam. Pod coverings split open in different ways depending on the type of fruit with some having multiple seams while others have only one seam.
  
  

Multiple Fruit-Bearing Trees

• A piece of fruit develops out of specialized structures called pistils, which grow from the flower portion of a tree or plant. According to the University of Nevada, fruit varieties, such as raspberries, blackberries and mulberries grow in clusters, with each piece of fruit produced by an individual pistil. Within the development stages, clusters form when multiple ovary structures fuse together during the growth process. Also known as aggregate fruits, each piece of fruit within a cluster typically mature and ripen at the same time, which is why a clusters is picked as a whole group rather than as individual pieces of fruit. In the case of pineapple and breadfruit trees, multiple seed structures appear as berries contained inside the fleshy, stem-portioned part of the whole fruit, according to Palomar Community College.