Taxonomic treatment of three Garcinia species (section Brindonia, Clusiaceae) in Thailand, with six new synonyms and ten lectotypifications

The taxonomy of three Garcinia species, G. cowa var. cowa, G. oliveri, and G. schomburgkiana (section Brindonia, Clusiaceae), is revised for Thailand. All three species have edible fruits, young shoots, and leaves with a sour taste. Morphological descriptions and illustrations are provided, along with notes on distribution, phenology, conservation status, etymology, vernacular names, uses, specimens examined, habitats, and ecology.

Four taxa, G. cochinchinensis, G. fusca, G. nigrolineata, and G. plena, are newly synonymized under G. cowa var. cowa, and two taxa, G. delpyana and G. bancana var. curtisii, are newly synonymized under G. oliveri. Ten names are lectotypified here, including six synonyms of G. cowa var. cowa (G. cochinchinensis, G. fusca, G. kunstleri, G. loureiroi, G. nigrolineata, and G. plena), G. oliveri and its two synonyms (G. delpyana and G. curtisii), and G. schomburgkiana.

All three species have a conservation status of Least Concern (LC).