Line drawings of Zingiber chengii Y.H.Tseng, C.M.Wang & Y.C.Lin , sp. nov. A habit B base of plant C rhizome D−E leaf adaxial and abaxial surface F ligulate G−K bracts and bracteoles L dorsal corolla lobe M lateral corolla lobe N−O inflorescences P flower Q pistil R stamen and anther crest S labellum with basally connate lateral staminodes T fruit.