PhytoKeys (Dec 2019)

Two new species of Phyllanthus (Phyllanthaceae) from Thailand

  • Pimwadee Pornpongrungrueng,
  • Pranom Chantaranothai,
  • John A.N. Parnell,
  • Trevor R. Hodkinson

DOI
https://doi.org/10.3897/phytokeys.136.47625
Journal volume & issue
Vol. 136
pp. 35 – 44

Abstract

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Two Phyllanthus species are newly described from a limestone mountain in the north of Thailand. The first species, P. huamotensis Pornp., Chantar. & J.Parn., sp. nov., is one of the most distinct Phyllanthus species easily distinguished by its reddish branchlets and stem, conspicuous reddish venation, especially on the lower leaf surface, red sepals with long fimbriate margin and red capsule with papillose-puberulous surface. The second species, P. chantaranothaii Pornp., J.Parn. & Hodk., sp. nov., is similar to P. pulcher Wall. ex Müll.Arg., but it is distinguished by its puberulous upper leaf surface and pistillate flowers which have red, narrowly lanceolate sepals with a white, long fimbriate margin, puberulous outer side as well as puberulous pedicel.