Biology:Pandanus pluriloculatus

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Short description: Species of tree endemic to Madagascar

Pandanus pluriloculatus
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Pandanales
Family: Pandanaceae
Genus: Pandanus
Section: Pandanus sect. Acanthostyla
Species:
P. pluriloculatus
Binomial name
Pandanus pluriloculatus
H.St.John[2]

Pandanus pluriloculatus is a dioecious tree in the family Pandanaceae which is endemic to Madagascar. The specific epithet, pluriloculatus, is a reference to the numerous locules in a compound ovary.[3]


Description

Pandanus pluriloculatus is a tree up to Template:Convert abbreviated tall with a dark brown bark and a spiny trunk up to Template:Convert abbreviated in diameter. The crown of the tree is narrowly cylindric, with three spirals of large leaves at the top. Most of the trunk below the crown has many short branchlets with narrow leaves and fruit spikes. The leaves at the top of the tree are Template:Convert abbreviated long and Template:Convert abbreviated wide. The leaves of the lateral branchlets are shorter (Template:Convert abbreviated long), and narrower (Template:Convert abbreviated wide). P. pluriloculatus usually has no prop roots.[3]

Flowers and fruit

Flowering clusters arise at the tips of the lateral branchlets. They are set on a 3-sided stalk (peduncle) Template:Convert abbreviated long and 1 cm in diameter. The fruits (syncarps) are Template:Convert abbreviated long and Template:Convert abbreviated in diameter. There are usually 3 or 4 fruits crowded together with the largest at the tip. They are generally egg-shaped, although the smaller ones may be nearly round.[3]

Distribution and habitat

The trees are infrequent in coastal swampy forests. The species was first described in 1968, found along the east coast of Madagascar, in the Antalaha area.[3] It has now been documented in Antsiranana and Toamasina provinces and in the Mananara Nord and Masoala protected areas.

Taxonomy

Pandanus pluriloculatus is a member of the section Acanthostyla. Its closest relative is P. pseudobathiei Pic. Ser.[3]

References

Wikidata ☰ Q15579452 entry