Four new curcuma species (Zingiberaceae) from Thailand

Abstract

Four new Curcuma species (Zingiberaceae) from Thailand are described here. Curcuma fimbriata, C. mi-crantha and C. spathulata belong to C. subg. Hitcheniopsis, while C. globulifera belongs to the nominal C. subg. Curcuma. Each species is compared to the morphologically closest species and detailed descriptions, colour plates and information on their distribution, ecology, phenology and uses are provided. A preliminary IUCN conservation assessment of each of these species is proposed.