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Issue: Vol. 484 No. 2: 17 February 2021
Type: Article
Published: 2021-02-17
DOI: 10.11646/phytotaxa.484.2.8
Page range: 237–243
Abstract views: 25
PDF downloaded: 2

Mouretia oblanceolata (Rubiaceae), a new species from central Vietnam

Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam.
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam. Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam.
Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam.
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam. Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam.
College of Forestry, Central South University of Forestry and Technology, Changsha, 410004, China.
Argostemmateae Mouretia new species taxonomy Vietnam Eudicots

Abstract

Mouretia oblanceolata, discovered in central Vietnam, is described as a new species of the tribe Argostemmateae in the family Rubiaceae. The new species is most similar to Mouretia tonkinensis and M. vietnamensis but differs from them by the following traits: erect to sub-erect habit, abaxially glabrous, obcordate stipules, oblanceolate leaves, 12–16 pairs of lateral veins, terminal, umbrella-like, cymose inflorescences, deltoid calyx lobes, and revolute, deltoid to ovate corolla lobes. The formal description, including color illustrations and basic information of ecology, phenology and conservation status, and a key to all currently known species of the genus are provided here.