A new species, Piper chiangdaoense from Doi Chiangdao Wildlife Sanctuary, Chiang Mai province, Thailand, is described and illustrated. Piper trichostigma is raised to specific status and an epitype is selected. Piper maculaphyllum and P. rubroglandulosum are reduced to the synonymy of P. argyrites and P. betle, respectively. A lectotype for P. argyrites is selected.

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Blumea: Biodiversity, Evolution and Biogeography of Plants

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Naturalis journals & series

Suwanphakdee, C., & Chantaranothai, P. (2011). A new species and three taxonomic changes in Piper (Piperaceae) from Thailand. Blumea: Biodiversity, Evolution and Biogeography of Plants, 56(3), 235–239.