The Bwindi Forest is one of the richest ecosystems in Africa and, along with being a haven for the mountain gorilla, the forest also provides habitat for 120 species of mammals, including several primate species such as baboons and chimpanzees, as well as elephants and antelopes. 348 species of birds, 220 species of butterflies, 27 species of frogs, chameleons, geckos and many endangered species also reside in the forest. In terms of fauna, the Bwindi area is amongst the most diverse forests in East Africa, with more than 1,000 flowering plant species including 163 species of trees and 104 species of ferns. The northern sector which has a lower altitude is rich in species of the Guineo-Congolian flora. These include two species internationally recognized as endangered that is; Brown mahogany (Lovoa swynnertonii) and Brazzeia longipedicellata.