https://li01.tci-thaijo.org/index.php/tnh <p><span class="_5yl5">Tropical Natural History is a journal publishing original research, review and interactive natural history. Manuscripts considered include papers on experimental biology, systematic, ecology, paleontology, and the interaction of organisms with their environment.<br></span></p> <h3 class="r">Online ISSN : 2586-9892</h3> <p><span class="_5yl5">&nbsp;</span></p> Chulalongkorn University Museum of Natural History en-US Tropical Natural History 1513-9700 <p>Chulalongkorn University. All rights reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher</p> https://li01.tci-thaijo.org/index.php/tnh/article/view/258597 <p>The leaf epidermal anatomy of 23 <em>Crotalaria</em> species was studied. The leaf epidermis was prepared by peeling and clearing methods and observed by a light microscope. The results of the leaf epidermis showed that the shape of an epidermal cell is polygonal, irregular or jigsaw-like and the anticlinal wall is straight, curved or undulated. There are two stomatal types: anomocytic and anisocytic, while the trichome is uniseriate. The papillae are presented in <em>C</em>. <em>acicularis</em>. The leaf epidermal anatomical characteristics cannot be used for species identification, however the shape and anticlinal wall of the epidermal cell and the presence of trichomes can be used to determine species pairs.</p> Sakuntala Ninkaew Janjira Pimpijan Pranom Chantaranothai Pimwadee Pornpongrungrueng Woranart Thammarong Copyright (c) 2024 Tropical Natural History 2024-01-25 2024-01-25 24 1 7