NAPIROON, T., POOPATH, M., DUANGJAI, S., BALSLEV, H. and VAJRODAYA, S. 2018. <em>Lasianthus yalaensis</em> (Rubiaceae), a new species from peninsular Thailand. Phytotaxa. 364, 2 (Aug. 2018), 172–180. DOI:https://doi.org/10.11646/phytotaxa.364.2.4.