Schefflera  (Schefflera procumbens)

Schefflera procumbens in habitat

Facts

Previously known as:Geopanax procumbens
Kingdom Plantae
Phylum Tracheophyta
Class Magnoliopsida
Order Apiales
Family Araliaceae
Genus Schefflera (1)

Status

Classified as Vulnerable (VU) on the IUCN Red List 2007 (1).

Description

Found entwined with trees in forests, which it uses for support, Schefflera procumbens is a rare epiphyte with grey bark. Each leaf is composed of 10 leathery leaflets, each up to 15 centimetres long, radiating from a central stem measuring 20 centimetres long (2) (3). The fleshy, greenish flowers of Schefflera procumbens are borne in tight clusters on spikes and measure just half a centimetre wide (3), while the round, cream-coloured, fleshy fruits may be up to eight millimetres across (2).

Range

Endemic to the Seychelles where it occurs solely on the island of Silhouette. Schefflera procumbens used to also occur on Mahé, but has now become extinct on this island (2).

Habitat

Schefflera procumbens grows on mountain ridges on the granitic island of Silhouette (1) (4), where it generally occurs between 400 and 700 metres above sea level (2). It was said to once be a characteristic feature of mountain mist forest - humid forest which occurs at altitudes between 2,000 and 3,500 metres and is often enshrouded in low cloud - but this threatened climber is now much less common (5).

Biology

Schefflera procumbens is an epiphyte (2): a plant that uses another plant, typically a tree, for its physical support but does not draw nourishment from it (6). It grows up to the uppermost parts of the forest, known as the canopy, where it flowers and fruits (2).

Threats

Schefflera procumbens became extinct on Mahé primarily due to the degradation of its habitat (1). While the remaining population on Silhouette is believed to be stable, Schefflera procumbens is considered to be Vulnerable to extinction due to its tiny range (1), which makes it incredibly susceptible to the impacts of any threats that may arise.

Conservation

The area in which the remaining Schefflera procumbens occurs is under the protection of the Nature Protection Trust of Seychelles. Cultivation of this plant, which would act as a safeguard against this species extinction, has been attempted, but unfortunately failed (1).

Further Information

For further information on conservation in the Seychelles see:

Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

Endemic: A species or taxonomic group that is only found in one particular country or geographic area.
Epiphyte: A plant that uses another plant, typically a tree, for its physical support, but which does not draw nourishment from it.

References

  1. IUCN Red List (November, 2007)
    http://www.iucnredlist.org
  2. Wise, R. (1998) A Fragile Eden. Princeton University Press, Princeton, New Jersey.
  3. Robertson, S.A. (1989) Flowering Plants of Seychelles. Royal Botanic Gardens, Kew.
  4. Nature Seychelles (July, 2008)
    http://www.natureseychelles.org
  5. Fleischmann, K., Héritier, P., Meuwly, C., Küffer, C. and Edwards, P.J. (2003) Virtual gallery of the vegetation and flora of the Seychelles. Bulletin of the Geobotanical Institute ETH, 69: 57 - 64.
  6. Allaby, M. (1998) Dictionary of Plant Sciences. Oxford University Press, Oxford.