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Issue: Vol. 664 No. 3: 10 Sept. 2024
Type: Article
Published: 2024-09-10
DOI: 10.11646/phytotaxa.664.3.5
Page range: 200-206
Abstract views: 151
PDF downloaded: 8

Dendrobium namdongense (D. sect. Dendrobium), a new miniature orchid from limestone mountains of northern Vietnam

Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam
Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam
Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam
Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam
Komarov Botanical Institute Russian Academy of Sciences, Prof. Popov str., 2, St. Petersburg, 197022, Russia
Komarov Botanical Institute Russian Academy of Sciences, Prof. Popov str., 2, St. Petersburg, 197022, Russia
Komarov Botanical Institute Russian Academy of Sciences, Prof. Popov str., 2, St. Petersburg, 197022, Russia
Limestone flora Nam Dong Conservation Area nature conservation new species Orchidaceae plant endemism plant protection plant taxonomy Thanh Hoa Province Monocots

Abstract

Dendrobium namdongense is described here as a new species from limestone areas of the Nam Dong Conservation Area, Thanh Hoa Province, Quan Hoa District (northern Vietnam). This species inhabits primary evergreen broad-leaved and mixed forests on karstic limestone at elevations of 900–1100 m a.s.l. in a zone of humid, cool tropical climate. A detailed illustrated description and comparison of the discovered plant with the morphologically closest species, D. fuscifaucium and D. hekouense is provided, along with data on its distribution, ecology, and phenology. The new species has a potential in ornamental horticulture. According to the criteria of the IUCN Red List, the conservation status of the species is determined as Critically Endangered (CR).

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