Abstract:
A taxonomic study of family Annonaceae in the East Forest was conducted by surveying and collecting plants from June 1999 to August 2000. All collected plant specimens were identified. This study was focused on morphological characters, diversity and geographical and ecological distributions of the species.There are 24 genera and 47 species of Annonaceae in the Eastern Forest. There are 1-2 species in each genus but the following genera have many species Uvaria (8 spp.), Polyalthia (7 spp.), Muliusa (5 spp.) The habit, flower position, floral sex distribution, aestivation and shape of sepals and petals, fruit shape and dehiscence are the main characters used for determining genera. The following genera were diffcult to identify into species Dasymaschalon, Uvaria, Polyalthia, Melodorum, Miluisa, Meiogyne, and Cyathostemma. The members of Annonaceae are mostly found in dry and moist evegreen forest at the 100-400 m. altitude. Many species were sources of widlife's food.