TY - JOUR AU - Parnell, John PY - 2014/12/08 Y2 - 2024/03/29 TI - An acount of the Plantaginaceae of Thailand JF - Thai Forest Bulletin (Botany) JA - Thai Forest Bull., Bot. VL - 0 IS - 31 SE - Articles DO - UR - https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24404 SP - 53-64 AB - One genus, with a single native species, is recognised in the Plantaginaceae following revision of Thai and associated materials. <em>Plantago</em> comprises the widespread <em>P. major</em> which is taken to include <em>P. asiatica</em> (lectotypified here) and <em>P. erosa</em> (lectotypified here). Investigation of stomatal density, stomatal length, seed size, seed number, leaf-lobing, pseudo-pedicel presence, inter-flower spacing and corolla-lobe length revealed that only the latter showed significant difference between material usually assigned to <em>P. asiatica</em> and <em>P. major</em>; with the latter the larger. The detected difference is both small and the reverse of that expected from previous studies.<br />Though field experience suggests that <em>P. major</em> is fairly frequent throughout Thailand the number of collections housed in herbaria is very few and the distributional data given are, necessarily, incomplete. ER -