Sunday, December 23, 2018

[Botany • 2018] Oreocharis tribracteata & O. rufescens • Two New Species of Oreocharis (Gesneriaceae) from Northern Vietnam


Oreocharis tribracteata Bramley, H.J.Atkins & Mich.Möller

in Möller, Atkins, Bramley, et al., 2018. 

Abstract
Two new species of OreocharisOreocharis tribracteata and O. rufescens, are described and a key to the species in Vietnam is provided. The new species have distinct features not previously, or rarely, observed in the genus, both showing the partial fusion of the calyx lobes into a tube, and the presence of three bracts in Oreocharis tribracteata.

Keywords. Gesneriaceae, Oreocharis rufescensOreocharis tribracteata, Vietnam. 




Oreocharis tribracteata Bramley, H.J.Atkins & Mich.Möller, sp. nov.

Etymology. The species is named for the presence of three bracts, which is rare in the genus and absent from all other Oreocharis species currently known in Vietnam.


Oreocharis rufescens D.J.Middleton, sp. nov.

Etymology. The species is named after the distinctive reddish brown indumentum covering the plant.


M. Möller, H. J. Atkins, G. L. C. Bramley, D. J. Middleton, R. Baines, V. D. Nguyen, H. Q. Bui and S. Barber. 2018. Two New Species of Oreocharis (Gesneriaceae) from Northern Vietnam. Edinburgh Journal of Botany. 75(3); 309-319.  DOI: DOI: 10.1017/S0960428618000148