Breadfruit by John Spottiswood.

This is the plant that the H.M.S. Bounty was carrying in the South Pacific when its crew mutinied. Captain Bligh's goal had been to transport the seedlings from Tahiti to the Caribbean, so that slaves there would have a ready source of starch and calories. Breadfruit is highly perishable, so fresh ones are hard to find outside the tropics. The canned version is a good substitute. A seeded version is called a breadnut.