| Ceroxyloideae | |
|---|---|
 | |
| Ceroxylon, the type genus. | |
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Arecales |
| Family: | Arecaceae |
| Subfamily: | Ceroxyloideae Drude[1] |
| Tribes | |
 | |
TheCeroxyloideae are a subfamily offlowering plants in thepalm family found mainly in theAmericas with an outlying genus in each ofAustralia,Madagascar, and theComoros. Recently revised, the former subfamily Phytelephantoideae was reduced to the tribal level and included, while theHyophorbeae tribe was reassigned toArecoideae; it now contains eight genera.[2][3]
From small to moderate to thetallest in the family, the trunks may be solitary or clustering and lack armament. The reduplicateleaf 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 theinflorescence, and all feature peduncular bracts. Any unisexualflowers are slightly dimorphic, solitary, or in rows; all have syncarpous, triovulategynoecium.[4][5][3]
Four widely spread genera occur inSouth America,Australia, andMadagascar, 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 |
|---|---|---|
_(14725549921).jpg) | CeroxylonBonpl. ex DC. |
|
.jpg) | JuaniaDrude |
|
_002.jpg) | Oraniopsis(Becc.) J. Dransf. A.K.Irvine & N.W.Uhl | |
 | RaveneaC.D.Bouché |
|
A monotypic tribe fromNorth andCentral 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 |
|---|---|---|
 | PseudophoenixH.Wendl. ex Sarg. |
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. Thefruit is usually borne in dense clusters, each containing five to 10seeds.
| Image | Genus | Species |
|---|---|---|
| AmmandraO.F.Cook | ||
 | AphandraBarfod | |
 | PhytelephasRuiz & Pav. |
|
