Bali and Lombok species of begonia (Begoniaceae)
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A taxonomic study of the genus Begonia Blume (Begoniaceae) in Bali and Lombok Islands were conducted based on morphological characters. Three previously known species ( Begonia coriaceae Hassk., B. longifolia Blume and B. tenuifolia Dryander ) five new species ( B. baliensis Girmansyah sp. nov., B. lempuyangensis Girmansyah sp. nov., B. lombokensis Girmansyah sp. nov., B .multibractea Girmansyah sp. nov, B. pseudomuricata Girmansyah sp. nov.,) are proposed. A key to species is included. A phylogenetic analysis was undertaken using PAUP vers. 4. Ob4. Programs Swofford (2000) with Hillebrandia sandwicencis as out group. This analysis be resulted a parsimonious cladogram, which shows that the Begonia divided into three subclade and belong to four section (Sphenanthera, Reichenheimia, Petermannia and Parvibegonia).