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Phenetic study of the genus Monochoria in Thailand |
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| รหัสดีโอไอ | |
| Creator | 1. Duangjai Tungmunnithum 2. Thaweesakdi Boonkerd 3. Siriporn Zungsontiporn 4. NorioTanaka |
| Title | Phenetic study of the genus Monochoria in Thailand |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2560 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 39 |
| Journal No. | 1 |
| Page no. | 49 |
| Keyword | Monochoria,phenetic study,infraspecific taxa,OTUs,Thailand |
| ISSN | 0125-3395 |
| Abstract | Monochoria C. Presl is aquatic flowering plants belonging to Pontederiaceae. It consists of 8 species worldwide,occurring in tropical and subtropical regions. Currently, taxonomic status of Thai Monochoria remains unclear due to itsmorphological plasticity and different classification viewpoints. Some authors accept three monotypic species i.e. M. hastata,M. elata and M. vaginalis, whereas others recognized infraspecific taxa. To clarify this problem, intensive specimen collectionswere made throughout Thai floristic regions. Then, 22 quantitative and 23 qualitative characters from 550 specimenswere analyzed. Cluster analysis indicated that 550 specimens could be divided into five groups. Similarly, canonical discriminantanalysis showed that it comprises of five groups distinguished by lamina width of floral-leaf, petiole length of floral-leafand flowering stem length. To recapitulate, phenetic data support the segregation into five groups: M. vaginalis and itsclosely related species, M. elata and its closely related taxon and M. hastata, a monotypic species. |
