Conservation of Ireland's biodiversity: the status of two Irish endemic hawkweeds Hieracium hartii and H, hibernicum (Asteraceae)

摘要

The National Parks and Wildlife Service, Dublin commissioned a review and survey of the conservation status of H. hartii and H. hibernicum which are endemic to Ireland. Hieracium hartii has been regarded as extinct, but about 50 plants were rediscovered on Slieve League, Co. Donegal in its only locality; records for Ben Bulben and the Ox Mountains, both Co. Sligo, are errors. Hieracium hibernicum was originally described from Co. Down, but is extinct there and in one of its two Donegal localities; 41plants were rediscovered in the other Donegal site, the Owengarve River, which is now its only extant site. Both species are IUCN threat category 'Critically Endangered'. Lectotypes are designated.