Two species of Gaertnera in Thailand, viz. G. junghuhniana and G. sralensis, are enumerated and described. A lectotype is designated
for G. taiensis, a synonym of G. junghuhniana. A key to species and data on distribution, habit and phenology are also provided.
Keywords
Gaertnereae, key to species, lectotype, Rubioideae, Gentianales, taxonomy.