A striking new species of Begonia, B. joshii, is described from Amazonas Region, Peru. The new species is unusual among the South American members of the genus both in its combination of tuberous habit with peltate leaves and in living in a seasonally dry tropical forest environment. A phylogeny of this and closely related species is presented, and its sectional affiliation and IUCN conservation status are discussed. A key to the peltate Peruvian species of Begonia is provided.
Bibliographical noteFunding Information:
We thank the Ministerio del Ambiente del Perú for granting us permission to conduct fieldwork under permit 096-2017-SERFOR/DGGSPFFS and the Royal Botanic Garden Edinburgh for funding the fieldwork. We also thank Josh Allen for alerting the authors to this new species and his help in relocating it. This research was carried out as part of British Council project 418235692, Increasing knowledge of dry and montane ecosystems across Peru, at the Royal Botanic Garden Edinburgh, supported by the Scottish Government's Rural and Environment Science and Analytical Services Division.
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- Begonia sect. Eupetalum
- large genera
- new species