Pollen morphology of subfamily Nelsonioideae (Acanthaceae) in Thailand

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Published: Apr 19, 2018
DOI: https://doi.org/10.14456/kkurj.2018.7
Keywords:
Nelsonia Staurogyne Acanthaceae Plant Taxonomy

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Thiamhathai Choopan
Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima , Thailand
Paul Joseph Grote
Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, Bangkok , Thailand
Kongkanda Chayamarit
Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, Bangkok , Thailand
David A. Simpson
Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK

Abstract

The pollen morphology of Thai Acanthaceae Subfamily Nelsonioideae was investigated. The pollen type was tricolpate. Their apertures were longitudinal narrow colpi with acute ends. The polar axis length (P) was 16.3-42.5 μm and equatorial axis length (E) was 17.5-37.5 μm. The largest size was represented in Staurogyne dispar, while the smallest showed in Nelsonia canescens, Staurogyne glauca, and S. parvicaulis. The shape varied from suboblate to prolate. Micro-foveolate, foveolate, and rugulate tecta were found in 6, 11, and 7 taxa of Nelsonia and Staurogyne, respectively. Psilate was only revealed in Staurogyne macrobotrya. The wall thickness varied from 1.25-2.5 μm depending on species.

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How to Cite
Choopan, T., Grote, P. J., Chayamarit, K., & Simpson, D. A. (2018). Pollen morphology of subfamily Nelsonioideae (Acanthaceae) in Thailand. Asia-Pacific Journal of Science and Technology, 23(2), APST–23. https://doi.org/10.14456/kkurj.2018.7
Issue
Vol. 23 No. 2 (2018): June
Section
Research Articles

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