The Mombassa Cycad is found in Kenya and in Tanzania. A flour made from the seeds and stems is used as emergency food, but it is now known that this can cause liver cancer. Photo from the San Diego Zoo.
Known as the Chestnut Dioon, or in its native Mexico as Palma de la Virgin (although a cycad, unrelated to palms). The seeds are eaten after detoxification. Lotusland, Montecito California.