Taxonomic treatment on Garciniasopsopia (Section Brindonia, Clusiaceae) in Thailand, with a new synonym and three lectotypifications of its synonyms.

Garciniasopsopia belongs to the section Brindonia in the family Clusiaceae. The fruits, young shoots and leaves are edible and have a sour taste. Morphological description and illustrations are provided, along with notes on distribution, habitats and ecology, phenology, a preliminary conservation assessment, etymology, vernacular names, uses and specimens examined. Garciniamckeaniana is a newly-synonymised name under G.sopsopia. Three synonyms of G.sopsopia are here lectotypified, including G.paniculata, G.rhumicowa and G.mckeaniana.