Gastrodia bawanglingensis (Orchidaceae, Epidendroideae), a new species from Hainan Island, China

Gastrodia bawanglingensis , a new species of Orchidaceae from Hainan Island, China, is described and illustrated. It is morphologically similar to G. theana , G. albidoides and G. albida with dwarf habits, scarcely opening flowers, elongated fruit stems, curved and fleshy perianth tubes and similar...

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Bibliographic Details
Published in:PhytoKeys 2023-02, Vol.220 (1), p.39-50
Main Authors: Chen, Zhi-Heng, Zhang, Zhong-Yang, Song, Xi-Qiang, Zhang, Zhe
Format: Article
Language:English
Subjects:
Botany
Chloroplasts
Discovery and exploration
Endangered species
Environmental aspects
Flowers
Genes
Genomes
Identification and classification
Islands
Laboratories
Morphology
National parks
New species
Orchidaceae
Orchids
Phylogenetics
Phylogeny
Physical characteristics
Rain forests
Rainforests
Threatened species
Trees
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Description
Summary:Gastrodia bawanglingensis , a new species of Orchidaceae from Hainan Island, China, is described and illustrated. It is morphologically similar to G. theana , G. albidoides and G. albida with dwarf habits, scarcely opening flowers, elongated fruit stems, curved and fleshy perianth tubes and similar columns and lips, but can be easily distinguished from them by having a pair of lateral wings bent outwards at the apex of the column and lateral wings with acuminate tips lower than the anther. According to the IUCN Red List Categories and Criteria, the new species is assessed as Endangered (EN). The plastome of G. bawanglingensis is greatly reduced and reconfigured with approximately 30876 bp in size and 25.36% in GC content. Morphological characteristics and molecular phylogenetic results based on chloroplast gene sequences support the recognition of G. bawanglingensis as a new species within Gastrodia .
ISSN:1314-2011
1314-2003
DOI:10.3897/phytokeys.220.95137