Thunbergia amphaii (Acanthaceae) a new species from Thailand


  • Chalermpol Suwanphakdee Kasetsart University
  • Kwanjai Khammonkol Phu Langka National Park, Department of National Parks, Wildlife and Plant Conservation, Ban Phaeng District, Nakhon Phanom 48140, Thailand.
  • David Middleton Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, Singapore 259569
  • Somran Suddee The Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, 61 Phahonyothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand.



Endemic, North-Eastern Thailand, Pollen morphology, taxonomy, Lamiales


Thunbergia amphaii, a new species from North-Eastern Thailand is described and illustrated. The pseudo-umbel inflorescence is diagnostic for this species. The pollen morphology, especially the size and the pericolpate aperture arrangement, further support this species as new to science.


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Author Biography

Chalermpol Suwanphakdee, Kasetsart University

Department of Botany, Faculty of Science


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How to Cite

Suwanphakdee, C., Khammonkol, K. . ., Middleton, D., & Suddee, S. (2021). Thunbergia amphaii (Acanthaceae) a new species from Thailand. Thai Forest Bulletin (Botany), 49(1), 57–62.