PhytoKeys (Oct 2024)

Ophiorrhiza liuyanii (Rubiaceae), a new species from south-western China and northern Vietnam

  • Chu-Yu Liu,
  • Xiao-Wen Liao,
  • Li-Chun Ye,
  • Yun-Hong Tan,
  • Khang Sinh Nguyen,
  • Tran Duc Thien,
  • Lei Wu

DOI
https://doi.org/10.3897/phytokeys.248.135078
Journal volume & issue
Vol. 248
pp. 199 – 206

Abstract

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Ophiorrhiza liuyanii, a new species from south-western China and northern Vietnam, is described and illustrated. The new species is characterised by the glabrous surfaces on almost all plant parts, congested inflorescences and broad-ovate to ovate bracts 9–22 × 4–11 mm. It morphologically differs from the closest species, O. baviensis, mainly in most plant parts being glabrous, bracts broad-ovate to ovate, apex acute or sometimes obtuse, corollas inside with a ring of white hairs at the middle and anthers inserted near the middle in long-styled flowers. According to IUCN Categories and Criteria, O. liuyanii is assessed as Least Concern (LC).