SYNOPSIS OF BEGONIA (BEGONIACEAE) FROM THE NORTHERN ARM OF SULAWESI AND SANGIHE ISLAND, INDONESIA, INCLUDING THREE NEW SPECIES Author Ardi, W. H. Research Center for Biosystematics and Evolution, National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor Km 46, Cibinong, Kabupaten Bogor, Jawa Barat 16911, Indonesia. E-mail: wisn 005 @ brin. go. id. wisn005@brin.go.id Author Thomas, D. C. Research and Conservation, Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, Singapore 259569. text Edinburgh Journal of Botany 2022 2022-08-18 79 405 1 50 http://dx.doi.org/10.24823/ejb.2022.405 journal article 10.24823/EJB.2022.405 1747-0036 10524193 17. Begonia sidolensis Dayanti, Ramadanil & Ardi [§ Petermannia ], Phytotaxa 439(2): 137 (2020) . – Type: Indonesia , Sulawesi , Central Sulawesi, Gunung Sidole , Aloo Village , 2 xii 2018 , E.P. Dayanti ED12 ( holotype BO , isotype CEB ). Distribution . Indonesia : endemic to Sulawesi , Central Sulawesi Province (western North biogeographical region), Mount Lolombulan (see Figure 2 ). Habitat . Montane rain forests growing terrestrially on steep slopes in dense shade at 1700–1900 m elevation. Proposed IUCN conservation category . Vulnerable (VU D2) ( Dayanti et al. , 2020 ).