Three new species combinations are made under Villaria for the Philippine endemics Hypobathrum coriaceum, H. multibracteatum and H. purpureum. Morphological features of these three Hypobathrum species revealed a closer resemblance with Villaria than with Hypobathrum, as the three Philippine endemics possess a unilocular ovary with parietal placentation; a character that is not found in any genera of Octotropideae except in Villaria. Lectotypes and a neotype are selected.

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Naturalis Biodiversity Center
doi.org/10.3767/blumea.2020.65.01.11
Blumea: Biodiversity, Evolution and Biogeography of Plants

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Arriola, A.H., & Alejandro, G. D. (2020). Three new combinations in Villaria (Octotropideae, Rubiaceae), an endemic genus from the Philippines. Blumea: Biodiversity, Evolution and Biogeography of Plants, 65(1), 86–89. doi:10.3767/blumea.2020.65.01.11