Apple (Tree)

• Common Name: Apple (Tree)
• Latin Name: Malus domestica
• Family Name: Rosaceae

Failing to pick up all the blossom from fruit trees will do no harm during the short season they are on the ground but don't offer as extra. 

The pips/seeds from the apple contain cyanide and should be avoided.  The leaves, as they get older and wilt, produce a cyanic compound, so although your tortoise will come to no harm if he accidentally nibbles a few fallen leaves, it is wise to prevent him from doing so if possible.  See Apple (Fruit).