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Issue: Vol. 645 No. 2: 23 Apr. 2024
Type: Article
Published: 2024-04-23
DOI: 10.11646/phytotaxa.645.2.7
Page range: 179-185
Abstract views: 76
PDF downloaded: 4

Primulina hoangmongii (Gesneriaceae), a new species from northern Vietnam

Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi-10072, Vietnam, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi-10072, Vietnam
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Str., 2, 197376 St. Petersburg, Russia
Herbarium of Taiwan Forestry Research Institute, Taiwan Forestry Research Institute, No. 53, Nan–Hai Road, Taipei 100, Taiwan
plant diversity endemism plants of limestone karst plant taxonomy Eudicots

Abstract

Primulina hoangmongii, a new species from Yen Bai Province of northern Vietnam, is described and illustrated. It is similar to P. albicalyx in its robust rhizome, rosette leaves, and yellow flowers. However, P. hoangmongii is clearly distinguished by its linear to narrowly-lanceolate bracts, 8–12 × 2–3 mm (vs. narrowly ovate to ovate, 18–25 × 9–14 mm), green calyx (vs. white), rich yellow corolla (vs. pale yellowish), base of the upper lip flat, thin and rich pure yellow (vs. swelling between lobes, yellow-brownish), and a ligulate, entire stigma (vs. deltoid, 2-lobed). The conservation status of P. hoangmongii is preliminarily assessed according to IUCN criteria as Critically Endangered (CR).

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