Ceroxyloideae

Source: Wikipedia, the free encyclopedia.

Ceroxyloideae
Ceroxylon, the type genus.
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Ceroxyloideae
Drude[1]
Tribes

The Ceroxyloideae are a subfamily of

Arecoideae; it now contains eight genera.[2][3]

Description

From small to moderate to the tallest in the family, the trunks may be solitary or clustering and lack armament. The reduplicate leaf is regularly or irregularly pinnate, bifid, or entire with pinnate ribs; crownshafts are present in some members and absent in others. Monoecious, dioecious, and hermaphroditic palms occur in the group; a protective prophyll accompanies the inflorescence, and all feature peduncular bracts. Any unisexual flowers are slightly dimorphic, solitary, or in rows; all have syncarpous, triovulate gynoecium.[4][5][3]

Tribes

Ceroxyleae

Four widely spread genera occur in South America, Australia, and Madagascar, characterized by tall, rarely slender, trunks which lack crownshafts. The flowers are early-opening, solitary, spirally or subdistichously arranged, with small bracts.

Image Genus Species
Ceroxylon Bonpl. ex DC.
Juania Drude
  • Juania australis
    , the Chonta palm
Oraniopsis (Becc.) J. Dransf. A.K.Irvine & N.W.Uhl
  • Oraniopsis appendiculata
Ravenea C.D.Bouché

Cyclospatheae

A monotypic tribe from North and Central America, they have moderately sized, erect trunks, with crownshafts. The flowers are solitary, spirally arranged, hermaphroditic, and borne in the axils of small bracts.

Image Genus Species
Pseudophoenix H.Wendl. ex Sarg.

Phytelepheae

Three genera of dioecious South American palms, with moderate to large, acaulescent or erect trunks, their staminate inflorescences are spike-like, while the pistillate are branched and spreading. The fruit is usually borne in dense clusters, each containing five to 10 seeds.

Image Genus Species
Ammandra O.F.Cook
  • Ammandra decasperma
Aphandra Barfod
  • Aphandra natalia
Phytelephas Ruiz & Pav.

References

  1. ISBN 0643096159
    .
  2. ^ Dransfield, John; Uhl, Natalie W.; Asmussen, Conny B.; Baker, William J.; Harley, Madeline M.; Lewis, Carl E. (2005). "A new phylogenetic classification of the palm family, Arecaceae". Kew Bulletin. 60: 559–569 – via ResearchGate.
  3. ^
    ISBN 9781842461822
    .
  4. ISBN 978-0-88192-558-6
  5. ISBN 978-0-935868-30-2

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Ceroxyloideae&oldid=1193138297"