Begonia vermeulenii D.C.Thomasin Edinburgh J. Bot. 68(2): 248. 2011, nom. val.
Isotype: Indonesia, Sulawesi, Sulawesi Selatan, Buntu area, Kampong Lokkok, alt. 1500 m, 3°13'S, 119°48'E, limestone slope with remnants of primary forest, secondary forest, low scrub, grassland and agricultural land; in disturbed primary forest with dense undergrowth, 15 Sep 2003, Vermeulen, J.J. 2301 (SING)
Holotype: Indonesia, Sulawesi, Sulawesi Selatan, Buntu area, Kampong Lokkok, alt. 1500 m, 3°13'S, 119°48'E, limestone slope with remnants of primary forest, secondary forest, low scrub, grassland and agricultural land; in disturbed primary forest with dense undergrowth, 15 Sep 2003, Vermeulen, J.J. 2301 (WAG)