I would like to understand how works the classification of fruits in stone fruit, nut and all these other kinds of fruits. What are the criterions which make i.e. the litchi a nut an the walnut a stone fruit ? If somebody could help me to understand the hole system (maybe the are explaining texts on the web), it would be nice.

Give all the classification of fruits

Does this help??

A Systematic Treatment of Fruit Types (http://www.worldbotanical.com/fruit_types.htm)

What