Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences
A new species of Rubiaceae found in Myanmar
Source:     Release time :2015-12-21


During November to December in 2014, a team from Xishuangbanna Tropical botanical garden (XTBG) and Kunming Institute of botany (KIB), in collaboration with the Forest research Institute of Myanmar, conducted field work in northern Myanmar to survey  plant  diversity. During  field work, specimens of  Acranthera  were  found  in  Putao,  Kachin  state.Interestingly, the genus has never been reported from Myanmar before.
Based on a detailed examination of the morphological and anatomical characters of our material and possible closely similar species, the researchers regarded that the specimens collected in Myanmar belong to a species new to science. They named the species as Acranthera burmanica Y. H. Tan & B. Yang, sp. nov. , then described and illustrated it.
  Acranthera burmanica is similar to A. sinensis C. Y. Wu (1957:295), differing from the latter by its stem and  branches densely strigose throughout (vs. glabrescent when aged); ovate to ovate-lanceolate leaves (vs. elliptic or obovate);  calyx  distinctly  shorter  than  corolla  tube  (vs.  equal  to  corolla  tube),  calyx  lobes  lanceolate  (vs.  linear-lanceolate),  apex  attenuate (vs. acuminate); stipules triangular, apex acute not cuspidate (vs. broadly ovate to triangular, glabrescent, cuspidate);  lower part of filaments connate into a tube (vs. free).
   Acranthera burmanica is endemic to Myanmar and known from Kachin State, Putao, where it grows in the understory in tropical rain forests and tropical mountain forests, at an elevation of ca. 900–1500 m.
 The new species has been published online in Phytotaxa.


 

Acranthera burmanica A. Habit. B. Stipule and Flower branch. C. Peduncle. D, F. Bracts. E. Flower bud. G. Inforescences. G. Corolla (adaxial view). I. Calyx. J. Opened corolla. K–L. Stamens. M. Pistil. N–P. Ovary portion. Photographed by Yun-Hong Tan.

Download the attachment: