Mankyua

Mankyua
Conservation status
Critically Endangered (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Ophioglossales
Family:	Ophioglossaceae
Subfamily:	Mankyuoideae J.R.Grant & B.Dauphin
Genus:	Mankyua B.Y.Sun, M.H.Kim & C.H.Kim
Species:	M. chejuense
Binomial name
Mankyua chejuense B.Y.Sun, M.H.Kim & C.H.Kim

Mankyua is a monotypic genus and fern in the Ophioglossales. Its only species, M. chejuense,^[1] grows only on Jeju Island of South Korea. While this plant is clearly ophioglossoid in the broad sense, its precise cladistic position is uncertain. It has a fused sporangial structure similar to Ophioglossum, but a vegetative structure, with palmately-radiating pinnae, reminiscent of Helminthostachys. It may be a basal offshoot of the ophioglossoid clade sensu stricto.

References[]

Sun, B.-Y., M.H. Kim, C.H. Kim, and C.-W. Park. 2001. Mankyua (Ophioglossaceae): a new fern genus from Cheju Island, Korea. Taxon 50: 1019-1024.

Line Notes[]