''Lanonia'' is a genus of fan palms, in the

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English language, English is in the discipline of anthropology. This definition is contested, in p ...

Trachycarpeae Trachycarpeae is a tribe of palms in subfamily Coryphoideae of the plant family Arecaceae. It has the widest distribution of any tribe in Coryphoideae and is found on all continents (except Antarctica), though the greatest concentration of specie ...

(subtribe: Livistoninae). It has a recorded native range from southern China to

Indo-China Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west an ...

and is also found in

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

Description and phylogeny

''Lanonia'' spp. are fan palms: originally eight species, six

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to Vietnam, were transferred here from the similar genus ''

Licuala ''Licuala'' is a genus of palms, in the tribe Trachycarpeae, commonly found in tropical forests of southern China, Southeast Asia, the Himalayas, New Guinea and the western Pacific Ocean islands. Description and uses ''Licuala'' spp. are fan ...

'', but which was found not to be

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

; if anything ''Lanonia'' is more closely related to ''

Johannesteijsmannia ''Johannesteijsmannia'' is a genus of four species of palms found in tropical rainforests of the Malay Peninsula, Borneo and northern Sumatra. They are fan palms, usually growing without a trunk. The genus was named in honor of Johannes Elia ...

''. In this

phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

study, seven gene regions were analysed, significantly resolving the relationships of genera in the subtribe Livistoninae. These palms are

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...

, although not exclusively in cultivated specimens: in contrast to ''Licuala'' spp., which possess

hermaphroditic In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes. Many taxonomic groups of animals (mostly invertebrates) do not have separ ...

flowers. The staminate and pistillate inflorescences are dimorphic in size, shape, and branching. The leaves of ''Lanonia'' may best be distinguished by the petioles, which appear to taper into the blades of each leaf. As with other fan palms, this leaf structure lends itself to the production of Vietnamese conical hats, for which the genus is named.Wheeler Q (2013
New to nature No 101: ''Lanonia centralis''
''The Guardian'' "New to Nature" series.

Species

Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...

'' currently (February 2021) includes 13 accepted species:Plants of the World Online (POWO): ''Lanonia'' A.J.Hend. & C.D.Bacon (retrieved 7 February 2021)
/ref> * ''

Lanonia acaulis ''Lanonia'' is a genus of fan palms, in the tribe Trachycarpeae (subtribe: Livistoninae). It has a recorded native range from southern China to Indo-China and is also found in Java. Description and phylogeny ''Lanonia'' spp. are fan palms: orig ...

'' (A.J.Hend., N.K.Ban & N.Q.Dung) A.J.Hend. & C.D.Bacon * ''

Lanonia batoensis ''Lanonia'' is a genus of fan palms, in the tribe Trachycarpeae (subtribe: Livistoninae). It has a recorded native range from southern China to Indo-China and is also found in Java. Description and phylogeny ''Lanonia'' spp. are fan palms: orig ...

'' A.J.Hend. & N.Q.Dung * '' Lanonia calciphila'' (Becc.) A.J.Hend. & C.D.Bacon * '' Lanonia centralis'' (A.J.Hend., N.K.Ban & N.Q.Dung) A.J.Hend. & C.D.Bacon * '' Lanonia dasyantha'' (Burret) A.J.Hend. & C.D.Bacon * '' Lanonia gialaiensis'' A.J.Hend. & N.Q.Dung * '' Lanonia gracilis'' (Blume) A.J.Hend. & C.D.Bacon * '' Lanonia hainanensis'' (A.J.Hend., L.X.Guo & Barfod) A.J.Hend. & C.D.Bacon * '' Lanonia hexasepala'' (Gagnep.) A.J.Hend. & C.D.Bacon * '' Lanonia magalonii'' (A.J.Hend., N.K.Ban & N.Q.Dung) A.J.Hend. & C.D.Bacon * ''

Lanonia manglaensis ''Lanonia'' is a genus of fan palms, in the tribe Trachycarpeae (subtribe: Livistoninae). It has a recorded native range from southern China to Indo-China and is also found in Java. Description and phylogeny ''Lanonia'' spp. are fan palms: orig ...

'' (A.J.Hend., N.K.Ban & N.Q.Dung) A.J.Hend. & N.Q.Dung * ''

Lanonia poilanei ''Lanonia'' is a genus of fan palms, in the tribe Trachycarpeae (subtribe: Livistoninae). It has a recorded native range from southern China to Indo-China and is also found in Java. Description and phylogeny ''Lanonia'' spp. are fan palms: orig ...

'' A.J.Hend. & N.Q.Dung * ''

Lanonia verrucosa ''Lanonia'' is a genus of fan palms, in the tribe Trachycarpeae (subtribe: Livistoninae). It has a recorded native range from southern China to Indo-China and is also found in Java. Description and phylogeny ''Lanonia'' spp. are fan palms: orig ...

'' A.J.Hend. & N.Q.Dung

References

External links

* {{Taxonbar, from=Q21399776 Arecaceae genera Flora of Indo-China Coryphoideae Dioecious plants