Saturday, April 20, 2019

[Botany • 2019] Begonia rheophytica (Begoniaceae) • A New Species of Begonia from northern Myanmar with An Updated Checklist of Begonia in Myanmar

 Begonia rheophytica M.Hughes

in Hughes, Aung & Armstrong, 2019. 

A new species, Begonia rheophytica Platycentrum), is described from northern Myanmar; it was initially confused with B. rhoephila, which is confined to Peninsular Malaysia. Comparison with other species with a rheophytic leaf shape is made. This new addition brings the number of currently recognised Begonia species in Myanmar to 73. An updated checklist of Myanmar Begonia species is also included.

Keywords: Biodiversity, Hkakaborazi National Park, Kachin State, Myanmar, taxonomy

FIG . 1.  Begonia rheophytica M.Hughes, sp. nov. A, Habit in the field (note water level at the base of the image); B, abaxial surface of petiole, showing short curled hairs; C, inflorescence; D, adaxial (left) and abaxial (right) leaf surface.
A–D, Armstrong et al. 3041. All scale bars, 1 cm.

Begonia rheophytica M.Hughes, sp. nov. 
§ Platycentrum

Etymology. Named after the rheophytic habit of the species (rheo-, pertaining to flowing water [Greek]).

M. Hughes, M. M. Aung and K. Armstrong. 2019. An Updated Checklist and A New Species of Begonia (B. rheophytica) from Myanmar. Edinburgh Journal of Botany. DOI: 10.1017/S0960428619000052