A new species and new combination in basally flowering Vietnam Costaceae

Abstract

Cheilocostuscandidus sp. nov. (Costaceae), a basally flowering spiral ginger with cream white flowers from southern Vietnam, is described and illustrated here. A new combination, Cheilocostustonkinensis (Gagnep.) Škorničk., is proposed here and the lectotype is designated. A key to Cheilocostus in Vietnam is included.

Keywords: Asia; Cheilocostuscandidus; Cheilocostustonkinensis; Costus; Hellenia; lectotype; spiral gingers.