title: Records of Wenchengia (Lamiaceae) from Vietnam.
abstract: BACKGROUND
  The monotypic genus Wenchengia (Lamiaceae) has been thought to be endemic to Hainan, China. This paper reports on historic records of Wenchengia alternifolia collected from Vietnam. The recent recuration and modernisation of the Paris herbarium greatly facilitated this discovery.
  
  
  CONCLUSIONS
  During preparatory work supporting the account for the Lamiaceae of the Flora of Thailand, three specimens of Wenchengia from central Vietnam were found in the Herbarium of the Musuem National d'Histoire Naturelle in Paris (P), and subsequently two duplicates were found in the Herbarium at Kew (K, abbreviations following Thiers 2016). The specimens were collected in and before 1927 and it is not known if the species is still extant in Vietnam. Searches for extant populations should focus in the Ba Na Hills or Bach Ma National Park, central Vietnam.
authors.affiliation: The Royal Botanic Gardens, Kew, London, United Kingdom.
authors.forename: Alan
authors.initials: A
authors.lastname: Paton
authors.affiliation: Missouri Botanical Garden, St. Louis, United States of America; Institut de Systématique, Évolution et Biodiversité (UMR 7205 - CNRS MNHN UPMC EPHE), Muséum national d'Histoire naturelle, Sorbonne Universités, Paris, France.
authors.forename: Peter B
authors.initials: PB
authors.lastname: Phillipson
authors.affiliation: The Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, Bangkok, Thailand.
authors.forename: Somran
authors.initials: S
authors.lastname: Suddee
keywords: Ba Na Hills; Bach Ma National Park; Hainan; endemic