A taxonomic revision of Garcinia sections Dicrananthera and Macrostigma (Clusiaceae) in Thailand Author Ngernsaengsaruay, Chatchai 0000-0002-7131-976X Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand Author Chanton, Pichet https://orcid.org/0009-0001-7325-6109 Biodiversity Center, Kasetsart University (BDCKU), Chatuchak, Bangkok 10900, Thailand text PhytoKeys 2024 2024-11-07 248 339 360 journal article 10.3897/phytokeys.248.130311 Garcinia section Macrostigma Pierre , Fl. Forest. Cochinch. 1 (6): 63. 1883; M. Gaudeul et al., PhytoKeys 239: 94. 2024 . Type. Garcinia latissima Miq., Ann. Mus. Bot. Lugduno-Batavi 1: 209. 1864. Garcinia section Macrostigma is characterized by its axillary or terminal cymose inflorescences with two to many flowers (in a simple cyme or in fascicles of several simple cymes), or a solitary flower (in female flowers); 4 (– 5) - merous flowers [4 - merous, e. g., G. nuntasaenii ; 5 - merous, e. g., G. phuongmaiensis , G. prainiana ]; male flowers with numerous stamens united into a central column, sometimes lobed with lobes equaling number of petals [a single weakly 4 - lobed bundle, e. g., G. nuntasaenii ], or into completely separate antepetalous bundles [united into 5 bundles, e. g., G. phuongmaiensis , G. prainiana ]; androecium often adnate to the petals to varying degrees; 2 - thecous anthers; pistillode absent in male flowers, but rudimentary or well-developed pistillode present in some species; (– 3) 4–8 - locular ovaries; unlobed or lobed and smooth or papillate stigmas; and fruits with a smooth surface, unlobed or faintly, shallowly or deeply lobed. Distinguishing morphological characters of this section based on Gaudeul et al. 2024 , which includes additional information. A section of 29 species worldwide ( Gaudeul et al. 2024 ); two species in Thailand (i. e., G. nuntasaenii and G. prainiana ).