Rhus sp. nov. A

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	SAPINDALES	ANACARDIACEAE

Scientific Name:	Rhus sp. nov. A
Taxonomic Notes:	Herbarium vouchers: Miller 10309; 14102a; 16093 (E).

Assessment Information [top]

Red List Category & Criteria:	Vulnerable D2 ver 3.1
Year Published:	2004
Assessor/s:	Miller, A.
Reviewer/s:	Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)
Contributor/s:
Justification: A rare species, with a very limited area of occupancy.

Geographic Range [top]

Range Description:	Endemic to Soqotra.
Countries:	Native: Yemen (Socotra)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Unknown

Population Trend:

Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Occasional on rocky slopes along the sides of the large wadis draining south into the Noged plain; in succulent shrubland and drought-deciduous woodland (with Buxanthus hildebrandtii and Euclea divinorum ). Altitude of 30–600 m. This undescribed new species of Rhus is found, typically on cliffs, along the sides of the larger wadis draining south into the Noged plain. The leaves, which are always trifoliate, are bright green, smaller and not as glossy as those of Rhus thyrsiflora. It comes into new leaf at the onset of rain and drops its leaves in summer. The flowers appear in winter and are in little-branched panicles which are shorter than the leaves; in R. thyrsiflora the flowers are in open panicles which greatly exceed the leaves. Its fruits, which are similar to those of R. thyrsiflora are said to be sweeter and, unlike those of R. thyrsiflora, are not wrinkled when dry.
Systems:	Terrestrial

Habitat and Ecology:

Occasional on rocky slopes along the sides of the large wadis draining south into the Noged plain; in succulent shrubland and drought-deciduous woodland (with Buxanthus hildebrandtii and Euclea divinorum ). Altitude of 30–600 m.

This undescribed new species of Rhus is found, typically on cliffs, along the sides of the larger wadis draining south into the Noged plain. The leaves, which are always trifoliate, are bright green, smaller and not as glossy as those of Rhus thyrsiflora. It comes into new leaf at the onset of rain and drops its leaves in summer. The flowers appear in winter and are in little-branched panicles which are shorter than the leaves; in R. thyrsiflora the flowers are in open panicles which greatly exceed the leaves. Its fruits, which are similar to those of R. thyrsiflora are said to be sweeter and, unlike those of R. thyrsiflora, are not wrinkled when dry.

Systems:

Terrestrial

Citation:	Miller, A. 2004. Rhus sp. nov. A. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 24 May 2013.
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