A taxonomic revision of Dolianthus C.H. Wright (Rubiaceae-Psychotrieae) is presented, including a key to species, full descriptions, distribution maps, and a list of specimens examined. Eleven species are transferred from Amaracarpus to Dolianthus, resulting in ten new combinations. Two species are described as new to science: D. kairoi and D. ovatifolius. In total, thirteen species are included in Dolianthus. Dolianthus is endemic to the highlands (montane to subalpine and alpine zones) of Papua New Guinea.

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Blumea: Biodiversity, Evolution and Biogeography of Plants

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Naturalis journals & series

Davis, A., & Bridson, D. M. (2001). A taxonomic revision of the genus Dolianthus (Rubiaceae). Blumea: Biodiversity, Evolution and Biogeography of Plants, 46(3), 421–446.