Abstract
The conservation status of Hieracium apheles P. D. Sell (Asteraceae), Hepste hawkweed has been assessed. A lectotype for the basionym H. septentrionale Arv.-Touv. var. simplex Ley has been designated. It is a rare endemic restricted to the Hepste Glen in the Brecon Beacons (v.c. 42), Wales. Only one population of five plants is known it is assessed as ‘Critically Endangered’ under IUCN (2001) threat criteria.
Highlights
Sell (Asteraceae), Hepste hawkweed, is a rare UK endemic restricted to the Brecon Beacons in Wales (Sell & Murrell, 2006; McCosh & Rich, 2018; Rich, 2020)
Hieracium apheles was first described as a distinct species in Sell & Murrell (2006), though it has had a long history during which it has been allied with several other species
Ley (1895a) named it as H. diaphanum var. cacuminum Ley, but cultivated specimens were shortly afterwards distributed through the Botanical Exchange Club in 1894 as H. diaphanum var. stenolepis (Ley, 1895b), with comments from the Swedish expert Elfstrand that it was a variety of H. diaphanum Fr., and from the English expert F.J
Summary
Hieracium apheles was first described as a distinct species in Sell & Murrell (2006), though it has had a long history during which it has been allied with several other species. Further material was distributed in 1907 (with the locality again cited as the Mellte Glen) with a comment that the name H. scoticum remained doubtful, and that W.R. Linton “does not favour the suggestion that it can be placed under H. sparsifolium” (Ley, 1908).
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