Lepidium amissum (Waitakere Scurvy Grass)

[Surroundx]

de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. (2013). Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. 70 pp.

[Melanie]

Lepidium amissum de Lange & Heenan, sp. nov.
urn:lsid:ipni.org:names:77129254-1
species-id.net/wiki/Lepidium_amissum

Conservation Status. Lepidium amissum is considered to be extinct. There have
been repeated unsuccessful surveys for this species over the last fifty years by various
botanists. Aside from the type the species is known from only one collection made in
1917. This collection and the type came from an ill defined area of coastline stretching
for some 6 km from the Manukau Heads to Karekare. Today this coastline is protected
within the Centennial Park, Waitakere Ranges. However, during the period when this
species was gathered, all of the coastline was being modified as a result of kauri (Agathis
australis (D.Don) Lindl.) logging (see Harvey 2001, 2006; MacDonald and Kerr
2009), and this may have contributed to its eventual extirpation. It does seem that L.
amissum was already uncommon at the time of its discovery and it is possible that the
gatherings made by Thomas Cheeseman where sufficient to cause its extinction as they
are copious and comprise many stems.

PhytoKeys 24: 1–147, doi: 10.3897/phytokeys.24.4375
New Lepidium (Brassicaceae) from New Zealand
P. J. de Lange 1, P. B. Heenan 2, G. J. Houliston 3, J. R. Rolfe 4, A. D. Mitchell 5

www.pensoft.net/journals/phytokeys/article/4375/abstract

[koeiyabe]

This species is listed as EX on the IUCN redlist.
www.iucnredlist.org/details/62798275/0

Please move this thread to Extinct Plants in the IUCN redlist.

[koeiyabe]

Specimen last collected in 1917.
plants.jstor.org/stable/10.5555/al.ap.specimen.ak4474?searchUri=filter%3Dname%26so%3Dps_group_by_genus_species%2Basc%26Query%3DLepidium%2Bamissum