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Angkalanthus oligophylla

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA SCROPHULARIALES ACANTHACEAE

Scientific Name: Angkalanthus oligophylla
Species Authority: Balf.f.
Taxonomic Notes: Synonym = Ancalanthus paucifolius Balf.f.

Assessment Information [top]

Red List Category & Criteria: Endangered D ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Miller, A.
Reviewer(s): Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)
Justification:
Since the 19th Century this species has only been recorded with certainty from a single locality (on rocky slopes where a large wadi enters the southern plain) where less than ten plants were seen. Local informants say that it is locally common in similar places along the southern escarpments but surveys in the region have failed to reveal more sites. Due to the uncertainty over its range a threatened category has been assigned.
History:
1997 Rare (Walter and Gillett 1998)

Geographic Range [top]

Range Description: Endemic to Soqotra. It is reported that A. oligophylla is common in dry ravines and at the mouths of the south draining wadis, which feed into the Noged Plain. However, only two specimens are known – the original specimen collected from the mouth of Wadi Ireh by Balfour in 1880 and a second specimen collected in 1990 at apparently exactly the same spot.
Countries:
Native:
Yemen (Socotra)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Succulent and drought-deciduous woodland on rocky slopes along the wadis draining into the southern plains. Altitude of 30 m.

A distinctive many-stemmed shrub with attractive, orange-red flowers which hang in racemes at the ends of pendulous branches. The flowers curve upwards and backwards thus regaining their orginal upright position despite hanging upside down.
Systems: Terrestrial

Citation: Miller, A. 2004. Angkalanthus oligophylla. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 18 September 2014.
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