[1]
ESSER, H.-J. and WATSON, M.F. 2006. PHYSOSPERMOPSIS, A NEW GENUS OF UMBELLIFERAE (APIACEAE) FOR THAILAND, AND A NEW SPECIES. Edinburgh Journal of Botany. 63, 1 (Aug. 2006), 9–13. DOI:https://doi.org/10.1017/S0960428606000370.