Tag Archives: Nephrodium ascensionis (Hook.)

Dryopteris ascensionis (Hook.) Kuntze

Ascension Island Wood Fern (Dryopteris ascensionis 

The Ascension Island Wood Fern is very closely related to the two species Dryopteris cognata (C. Presl.) Kuntze und Dryopteris napoleonis (Bory) Kuntze, both of which are endemic to the island of Saint Helena.  

The species grew only at the Green Mountain, the only place on Ascension Island, where a dense vegetation cover exists, and was found for the last time in the year 1889, and is since considered extinct.  

The reason for this are introduced, invasive plant species, which overrun the native vegetation.  


edited: 23.09.2017