Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam
A new species of Hedyotis L. (Rubiaceae), Hedyotis konhanungensis B.H. Quang, T.A. Le, K.S. Nguyen & Neupane, is described and illustrated from the central highlands of Vietnam based on morphological and phylogenetic evidence. The new species belongs to the morphologically diverse tribe...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2023-03-01
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| Series: | PhytoKeys |
| Online Access: | https://phytokeys.pensoft.net/article/95895/download/pdf/ |
| _version_ | 1811154673122410496 |
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| author | Bui Hong Quang Khang Sinh Nguyen Tuan Anh Le Le Thi Mai Linh Quoc Luan Nguyen Duy Hoang Vu Ngo Lei Wu Suman Neupane |
| author_facet | Bui Hong Quang Khang Sinh Nguyen Tuan Anh Le Le Thi Mai Linh Quoc Luan Nguyen Duy Hoang Vu Ngo Lei Wu Suman Neupane |
| author_sort | Bui Hong Quang |
| collection | DOAJ |
| description | A new species of Hedyotis L. (Rubiaceae), Hedyotis konhanungensis B.H. Quang, T.A. Le, K.S. Nguyen & Neupane, is described and illustrated from the central highlands of Vietnam based on morphological and phylogenetic evidence. The new species belongs to the morphologically diverse tribe Spermacoceae (ca. 1000 species) of the family Rubiaceae, which is represented by 70–80 species in Vietnam. The phylogenetic analysis, based on four DNA regions (ITS, ETS, petD, rps 16), confirms the new species’ placement within the genus Hedyotis – one of the largest genera in the tribe, comprising ca. 180 species across Asia and the Pacific. Hedyotis konhanungensis is morphologically distinct from all southeastern Asian Hedyotis L. in its set of traits such as leaf type (shape and thickness), growth habit, and floral parts (color of inflorescence axis and the shape of calyx lobes). The new species shows similarities with Hedyotis shenzhenensis, H. shiuyingiae, and H. yangchunensis from China in its herbaceous habit, fleshy ovate leaf blades, and dark purple floral parts, but it is phylogenetically distinct and can be distinguished from them by the following combination of morphological traits: habit with slightly smaller stature (<25 cm), broadly ovate or deltoid stipules with cuspidate apex and entire margin, and ovate or nearly ovate calyx lobes. |
| first_indexed | 2024-04-10T04:20:01Z |
| format | Article |
| id | doaj.art-c7a5d986246041a2bafc868cc11819be |
| institution | Directory Open Access Journal |
| issn | 1314-2003 |
| language | English |
| last_indexed | 2024-04-10T04:20:01Z |
| publishDate | 2023-03-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | PhytoKeys |
| spelling | doaj.art-c7a5d986246041a2bafc868cc11819be2023-03-11T09:11:05ZengPensoft PublishersPhytoKeys1314-20032023-03-01221738410.3897/phytokeys.221.9589595895Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of VietnamBui Hong Quang0Khang Sinh Nguyen1Tuan Anh Le2Le Thi Mai Linh3Quoc Luan Nguyen4Duy Hoang Vu Ngo5Lei Wu6Suman Neupane7Graduate University of Science and TechnologyGraduate University of Science and TechnologyMien Trung Institute for Scientific Research, Vietnam National Museum of NatureInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyKon Ka Kinh National ParkKon Ka Kinh National ParkCentral South University of Forestry and TechnologyMurray State UniversityA new species of Hedyotis L. (Rubiaceae), Hedyotis konhanungensis B.H. Quang, T.A. Le, K.S. Nguyen & Neupane, is described and illustrated from the central highlands of Vietnam based on morphological and phylogenetic evidence. The new species belongs to the morphologically diverse tribe Spermacoceae (ca. 1000 species) of the family Rubiaceae, which is represented by 70–80 species in Vietnam. The phylogenetic analysis, based on four DNA regions (ITS, ETS, petD, rps 16), confirms the new species’ placement within the genus Hedyotis – one of the largest genera in the tribe, comprising ca. 180 species across Asia and the Pacific. Hedyotis konhanungensis is morphologically distinct from all southeastern Asian Hedyotis L. in its set of traits such as leaf type (shape and thickness), growth habit, and floral parts (color of inflorescence axis and the shape of calyx lobes). The new species shows similarities with Hedyotis shenzhenensis, H. shiuyingiae, and H. yangchunensis from China in its herbaceous habit, fleshy ovate leaf blades, and dark purple floral parts, but it is phylogenetically distinct and can be distinguished from them by the following combination of morphological traits: habit with slightly smaller stature (<25 cm), broadly ovate or deltoid stipules with cuspidate apex and entire margin, and ovate or nearly ovate calyx lobes.https://phytokeys.pensoft.net/article/95895/download/pdf/ |
| spellingShingle | Bui Hong Quang Khang Sinh Nguyen Tuan Anh Le Le Thi Mai Linh Quoc Luan Nguyen Duy Hoang Vu Ngo Lei Wu Suman Neupane Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam PhytoKeys |
| title | Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam |
| title_full | Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam |
| title_fullStr | Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam |
| title_full_unstemmed | Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam |
| title_short | Hedyotis konhanungensis (Rubiaceae): A new species from the central highlands of Vietnam |
| title_sort | hedyotis konhanungensis rubiaceae a new species from the central highlands of vietnam |
| url | https://phytokeys.pensoft.net/article/95895/download/pdf/ |
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