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A new species of Begonia sect. Diploclinium, Begonia bhutanensis, from Bhutan

2021; Singapore Botanic Gardens; Volume: 73; Issue: 2 Linguagem: Inglês

10.26492/gbs73(2).2021-16

2382-5812

Phub Gyeltshen, Mark Hughes, Sherab Jamtsho,

Plant and animal studies

Begonia bhutanensis P.Gyeltshen & M.Hughes (Begoniaceae) is described from the warm broadleaved forests of Zhemgang district in Bhutan. It is assigned to Begonia sect. Diploclinium as it has a tuberous habit and bifid placentae and is similar to Begonia rubella Buch.-Ham. ex D.Don, but differs in having fimbriate bracts (not entire) and rounded wings on the capsule (not elongate triangular). A key to species of Begonia sect. Diploclinium in Bhutan is provided.