Isoetes toximontana 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Isoetopsida Isoetales Isoetaceae

Scientific Name: Isoetes toximontana
Species Authority: Muáelman & J.P.Roux

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2006-06-08
Assessor(s): Roux, J.P. & Raimondo, D.
Reviewer(s): Foden, W. & Juffe, D
Very narrow distribution range, three known sites but probably many more as it is a very cryptic undercollected species (J.P. Roux pers. comm. 2006.) It also has no major threats or sign of decline. It is listed as Least Concern.

Geographic Range [top]

Range Description: Endemic to Gifberg and Cedarberg mountain ranges, Northern and Western Cape.

1) Gifberg, many temporary standing pools or rock flushes on the Gifberg have the plant, this is all one subpopulation (J.P. Roux)
2) Pakhuis Pass, possibly more common on the Cedarberg. J.P Roux recently found additional sub populations of this species in the Cedarberg extending the range listed in Cook.
3) 22 km SE of Vanrhynsdorp, 1.0km south of Oubergpad, Gifberg road. 2001
Countries occurrence:
South Africa
Estimated area of occupancy (AOO) - km2: <20
Upper elevation limit (metres): 565
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Estimated number of locations: >10;
Three known but probably many more, very cryptic undercollected species (J.P. Roux pers. comm. 2006).
Current Population Trend: Stable
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Submerged in a temporary pond, 565m, on rocks
Systems: Freshwater

Threats [top]

Major Threat(s): No known threats - plants occur on rocky areas.

Conservation Actions [top]

Conservation Actions: No information

Citation: Roux, J.P. & Raimondo, D. 2010. Isoetes toximontana. The IUCN Red List of Threatened Species 2010: e.T185367A8397474. . Downloaded on 25 November 2015.
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