A new species of Zingiber (Zingiberaceae) from Taiwan, China, based on morphological and molecular data Morphology, distribution and chromosome counts of two varieties of Hedychium villosum (Zingiberaceae) Testing the potential of proposed DNA barcodes for species identification of Zingiberaceae Hedychium menghaiense (Zingiberaceae), a new species from Yunnan, China Reproductive Ecology of Rhynchanthus beesianus W. W. Smith (Zingiberaceae) in South Yunnan, China: A Ginger with Bird Pollination Syndrome