Ptisana purpurascensMaarten Christenhusz
Conservation plans have been proposed for Marattia purpurascens (Vriese & Harting 1853), an endemic of the isolated Ascension Island in the South Atlantic, where a single population remains. This population is now believed to be more stable than previously feared, but long-term threats to its survival do exist in the form of competition with introduced plant species and grazing by sheep (Gray et al. 2005).
Gray, A., Palembe, T., Stroud, S. (2005). The conservation of the endemic vascular flora of Ascension Island and threats from alien species. Oryx 39, pp. 449-453.
Vriese, W. H. de, and Harting, P. (1853). Monographie des Marattiacées. Arnz, Leiden & Dusseldorf.
The Natural History Museum, London, United Kingdom
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Page copyright © 2009 Maarten Christenhusz
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- First online 23 January 2009
- Content changed 23 January 2009
Citing this page:
Christenhusz, Maarten. 2009. Ptisana purpurascens. Version 23 January 2009 (under construction). http://tolweb.org/Ptisana_purpurascens/56775/2009.01.23 in The Tree of Life Web Project, http://tolweb.org/