| Pandanus rigidifolius | |
|---|---|
 | |
| The small, rigid, incurved leaves of Pandanus rigidifolius | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Pandanales |
| Family: | Pandanaceae |
| Genus: | Pandanus |
| Species: | P. rigidifolius |
| Binomial name | |
| Pandanus rigidifolius R.E.Vaughan & Wiehe | |
Pandanus rigidifolius is a species of plant in the family Pandanaceae, endemic to Mauritius. [1]
A low, small, spreading, many-branched tree. It produces many stilt-like roots, along the trunk, but also along the length of the side branches.
It can be distinguished by its compact (often trifarious) rosettes of small, rigid, erect, red-spined, deep blue-green leaves. These are usually only 75 cm long and 6 cm wide, folded lengthwise (reduplicate), stiff, erect, and have an abrupt, obtuse leaf tip. The reddish spines are closely set along the margins of the leaves.
The small (7–8 cm) fruit head is held erect on a short peduncle, and it is enclosed in three-ranked (trifarious) bracts. Each fruit head is packed with 200–220 small, unilocular drupes, with slightly convex tips.
In its appearance, it is most similar to the other dwarf Mauritian species Pandanus microcarpus as well as the Madagascan species Pandanus microcephalus . Another Mauritian species, Pandanus drupaceus , though a larger shrub or tree, also has rigid, incurved leaves. [2] [3] [4]
It was endemic to Mauritius, where it was formerly common in the damp wetlands of the highlands near Le Petrin and Les Mares.
Pandanus is a genus of monocots with some 578 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. The greatest number of species are found in Madagascar and Malaysia. Common names include pandan, screw palm and screw pine. They are classified in the order Pandanales, family Pandanaceae.
Pandanus utilis, the common screwpine is, despite its name, a monocot and not a pine. It is native to Madagascar and naturalised in Mauritius and the Seychelles.
The wildlife of Mauritius consists of its flora and fauna. Mauritius is located in the Indian Ocean to the east of Madagascar. Due to its isolation, it has a relatively low diversity of wildlife; however, a high proportion of these are endemic species occurring nowhere else in the world. Many of these are now threatened with extinction because of human activities including habitat destruction and the introduction of non-native species. Some have already become extinct, most famously the dodo which disappeared in the 17th century.
Pandanus carmichaelii is a species of plant in the family Pandanaceae. It is endemic to Mauritius.
Pandanus microcarpus is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus palustris is a species of plant in the family Pandanaceae, endemic to Mauritius. It was once common in marshes and in the wetter highlands of Mauritius, but is now threatened by habitat loss.
Pandanus pyramidalis is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus vandermeeschii is a species of plant in the family Pandanaceae. It is endemic to the coastal areas of Mauritius.
Pandanus iceryi ("Vacoas") is a species of plant in the family Pandanaceae. It is endemic to Mauritius.
Pandanus heterocarpus is a species of plant in the family Pandanaceae. It is commonly called the "Rodrigues screwpine", known locally as "vacoa parasol" or "vacoa cale rouge". It is endemic to the island of Rodrigues.
Pandanus conglomeratus is a species of plant in the family Pandanaceae, endemic to Mauritius, but possibly extinct.
Pandanus drupaceus is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus prostratus is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus eydouxia is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus glaucocephalus is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus barkleyi is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus incertus is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus sphaeroides is a species of plant in the family Pandanaceae, endemic to Mauritius.
Pandanus connatus is a species of plant in the family Pandanaceae native to northern Madagascar.
Pandanus erectus a species of plant in the family Pandanaceae. It is native to Madagascar, described growing in secondary forest in the Maroantsetra area of NE Madagascar. Some references list Pandanus concretus as the accepted name, with Pandanus centrifugalis, P. dauphinensis, P. erectus and P. madagascarensis as synonyms.
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