Friday, June 30, 2017

[Botany • 2017] Roscoea megalantha • A New Species (Zingiberaceae) from eastern Bhutan and India

Roscoea megalantha  Tosh.Yoshida & R.Yangzom

A new species of Roscoea is described and illustrated. Roscoea megalantha Tosh.Yoshida & R.Yangzom occurs in the Eastern Zone of Bhutan and neighbouring Arunachal Pradesh in India. A distribution map and an IUCN conservation assessment are given. A key to the three species of Roscoea found in Bhutan is provided.

Keywords. Arunachal Pradesh, Bhutan, IUCN conservation assessment, new species, Roscoea.

Roscoea megalantha Tosh.Yoshida & R.Yangzom, sp. nov. 

Roscoeae purpureae Sm. affinis, sed dorsali petalo reflexo, labelli ungue distincto et profunde canaliculato, labelli limbo late ovato vel rotundato, atque calcaribus connectivi praeditis projectris reflexis filiformibus differt.  

Etymology. The epithet comes from the Greek for large flower.

T. Yoshida, R. Yangzom and M. F. Newman. 2017. Roscoea megalantha (Zingiberaceae), A New Species from eastern Bhutan and India.  Edinburgh Journal of Botany.  DOI: 10.1017/S0960428617000142 

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