Research Paper

Phyllanthus coi (Phyllanthaceae), a new herbaceous species from the Philippines

Ming-Jou Wu, Ulysses Ferreras and Yen-Jui Chen

Published on: 13 November 2017

DOI: 10.6165/tai.2017.62.375

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2017 vol.62 no.4 pp.375-380


Phyllanthus coi M.J. Wu, Ferreras & Y.-J. Chen, a new species from Benguet Province, Island of Luzon, the Philippines, is described and illustrated. Compared to its congeners in the same section, P. coi can be differentiated by having long plagiotropic branchlets with up to 30 leaves per side, seeds with sharp honey-comb-like ridges on the dorsal side, and three free styles that are not lying flat on the top of the ovary. The floral, seed and some vegetative features that distinguish this new species from its nearest morphologically related species, P. erythrotrichus C.B. Rob., P. urinaria L. and P. hookeri Müll. Arg. are provided.

Keyword: Euphorbiaceae, New species, Philippines, Phyllanthaceae, Phyllanthus, Section Urinaria, Subsection Benguetensis