A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence
A new variety of Panax, P. vietnamensis var. langbianensis is described from Lang Bian Mountain, Lam Vien Plateau in southern Vietnam. It is visually distinct from other two varieties of P. vietnamensis (var. vietnamensis, var. fuscidiscus) by having the shorter petiolules 8–11 mm long, leaflet apex...
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Magnolia Press
2022
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| Truy cập trực tuyến: | http://scholar.dlu.edu.vn/handle/123456789/938 http://dx.doi.org/10.11646/phytotaxa.277.1.4 |
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oai:scholar.dlu.edu.vn:123456789-9382022-09-13T09:08:26Z A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence Nong Van Duy Lê, Ngọc Triệu Nguyen Duy Chinh Trần, Văn Tiến IUCN molecular phylogeny relationship taxonomy A new variety of Panax, P. vietnamensis var. langbianensis is described from Lang Bian Mountain, Lam Vien Plateau in southern Vietnam. It is visually distinct from other two varieties of P. vietnamensis (var. vietnamensis, var. fuscidiscus) by having the shorter petiolules 8–11 mm long, leaflet apex acuminate, pedicels 0.4–0.6 cm, petals smaller, disk prominent, and styles typically 2 (or rarely 1). The recognition of the new variety is supported by the evidence of molecular sequence data from three markers (ITS1-5.8S-ITS2, 18S rRNA and partial matK) in addition to morphological consideration. The new variety is known only from one population from the locality where the type specimens were collected. The species occurs in an area of only approximately 1 km2 with a population size of approximately 100–200 individuals. Therefore it should be regarded as critically endangered (CBB2acb (ii,iii,v); C2a(i); E) according to the IUCN Red List Categories and criteria. 277 1 047–058 2022-09-13T09:08:23Z 2022-09-13T09:08:23Z 2016 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter ISSN 1179-3155 ISSN 1179-3163 http://scholar.dlu.edu.vn/handle/123456789/938 http://dx.doi.org/10.11646/phytotaxa.277.1.4 en Phytotaxa ISSN 1179-3155 Magnolia Press |
| institution |
Thư viện Trường Đại học Đà Lạt |
| collection |
Thư viện số |
| language |
English |
| topic |
IUCN molecular phylogeny relationship taxonomy |
| spellingShingle |
IUCN molecular phylogeny relationship taxonomy Nong Van Duy Lê, Ngọc Triệu Nguyen Duy Chinh Trần, Văn Tiến A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| description |
A new variety of Panax, P. vietnamensis var. langbianensis is described from Lang Bian Mountain, Lam Vien Plateau in southern Vietnam. It is visually distinct from other two varieties of P. vietnamensis (var. vietnamensis, var. fuscidiscus) by having the shorter petiolules 8–11 mm long, leaflet apex acuminate, pedicels 0.4–0.6 cm, petals smaller, disk prominent, and styles typically 2 (or rarely 1). The recognition of the new variety is supported by the evidence of molecular sequence data from three markers (ITS1-5.8S-ITS2, 18S rRNA and partial matK) in addition to morphological consideration. The new variety is known only from one population from the locality where the type specimens were collected. The species occurs in an area of only approximately 1 km2 with a population size of approximately 100–200 individuals. Therefore it should be regarded as critically endangered (CBB2acb (ii,iii,v); C2a(i); E) according to the IUCN Red List Categories and criteria. |
| format |
Journal article |
| author |
Nong Van Duy Lê, Ngọc Triệu Nguyen Duy Chinh Trần, Văn Tiến |
| author_facet |
Nong Van Duy Lê, Ngọc Triệu Nguyen Duy Chinh Trần, Văn Tiến |
| author_sort |
Nong Van Duy |
| title |
A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| title_short |
A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| title_full |
A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| title_fullStr |
A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| title_full_unstemmed |
A new variety of Panax (Araliaceae) from Lam Vien Plateau, Vietnam and its molecular evidence |
| title_sort |
new variety of panax (araliaceae) from lam vien plateau, vietnam and its molecular evidence |
| publisher |
Magnolia Press |
| publishDate |
2022 |
| url |
http://scholar.dlu.edu.vn/handle/123456789/938 http://dx.doi.org/10.11646/phytotaxa.277.1.4 |
| _version_ |
1768305899960532992 |