Taxonomic Notes on Ophiopogon (Convallariaceae) of East Asia (II)

Abstract

Ophiopogon reversus C.C.Huang, so far recorded from Hainan Island and western Guangxi (southern China), has also been found in Hongkong (China), Taiwan, and Yonaguni Island of the southern Ryukyus (Japan). Specimens of this species have hitherto often been assigned to other species such as O. japonicus (Thunb.) Ker Gawl., O. jaburan (Siebold) Lodd. and O. planiscapus Nakai. Ophiopogon reversus is regarded as closely allied to both O. japonicus and O. jaburan. It is noteworthy that within this genus only these three species have diurnal flowers. A key to these three species is provided.