A morphological survey of foliar trichomes of Croton L. (Euphorbiaceae) in Thailand


  • Chadaporn Senakun Walai Rukhavej Research Institute, Mahasarakham University, Maha Sarakham 44150, Thailand.
  • Pranom Chantaranothai Applied Taxonomic Research Center, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.


Foliar trichomes, Croton, Euphorbiaceae, Thailand


The morphology of foliar trichomes of 23 species of Croton in Thailand was studied by scanning electron microscopy and by light microscopy. Seven main trichome types characterized by their morphology were found, namely, stellate, fasciculate, multiradiate-rosulate, dendritic, lepidote, glandular and simple types. Some trichome subtypes are useful for species identifi cation, particularly stellate rotate trichomes with a central porrect ray are found only in C. tiglium, appressed stellate trichomes in C. griffi thii and glandular trichomes are restricted to C. caudatus, C. crassifolius and C. hirtus.


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How to Cite

Senakun, C., & Chantaranothai, P. (2014). A morphological survey of foliar trichomes of Croton L. (Euphorbiaceae) in Thailand. Thai Forest Bulletin (Botany), (38), 167–172. Retrieved from https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24427