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Issue: Vol. 406 No. 5: 25 June 2019
Type: Article
Published: 2019-06-25
DOI: 10.11646/phytotaxa.406.5.3
Page range: 279–286
Abstract views: 39
PDF downloaded: 2

Bletilla guizhouensis (Orchidaceae; Epidendroideae), a new species from Guizhou China: evidence from morphological and molecular analyses

Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Centre of China and The Orchid Conservation and Research Centre of Shenzhen, Shenzhen 518114, China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen 518114, China
Chinese orchid Bletilla striata molecular phylogeny Epidendroideae new species Monocots

Abstract

Bletilla guizhouensis (Coelogyninae, Epidendroideae, Orchidaceae), a new species from Guizhou, China, is described and illustrated in this study based on the morphological and molecular evidence. Based on the morphological comparison, B. guizhouensis is closely related to B. striata, but differs in having ovate-oblong floral bracts, oblong-elliptic dorsal sepal, lip broadly-obovate, lip mid-lobe subelliptic, and disk with 7 longitudinal lamellae. These features distinguish the new orchid from all other known species of Bletilla. Molecular analysis based on nuclear ribosomal ITS and plastid DNA sequence data indicate that B. guizhouensis is a new species.