Ptisana purpurascens

Bibliography

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	Ascension Environmental Information Operations Utility. 2010. Annual plant census data. Georgetown, Ascension Island. Ashmole, P. and Ashmole, M. 2000. St Helena and Ascension Island: a natural history. Anthony Nelson, Oswestry, UK. Cronk, Q.C.B. 1980. Extinction and survival in the endemic flora of Ascension Island. Biological Conservation 17(3): 207-219. Gray, A. 2003. Marattia purpurascens. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. Available at: www.iucnredlist.org. (Accessed: 19 May 2010). Gray, A., Gardner, S., Kirk, L., Robinson, P., Smölka, Z. and Webster, L. 2000. The status and distribution of the endemic vascular flora of Ascension Island. Unpublished Report. IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Ascension Environmental Information Operations Utility. 2010. Annual plant census data. Georgetown, Ascension Island.

Ashmole, P. and Ashmole, M. 2000. St Helena and Ascension Island: a natural history. Anthony Nelson, Oswestry, UK.

Cronk, Q.C.B. 1980. Extinction and survival in the endemic flora of Ascension Island. Biological Conservation 17(3): 207-219.

Gray, A. 2003. Marattia purpurascens. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. Available at: www.iucnredlist.org. (Accessed: 19 May 2010).

Gray, A., Gardner, S., Kirk, L., Robinson, P., Smölka, Z. and Webster, L. 2000. The status and distribution of the endemic vascular flora of Ascension Island. Unpublished Report.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Citation:	Nissalo, M., Stroud, S., Gray, A., Lambdon, P.W. & Renshaw, O. 2012. Ptisana purpurascens. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 22 May 2013.
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