Arran whitebeams complex fashion, which involved the common whitebeam ("Sorbus aria") giving rise to the tetraploid rock whitebeam ("Sorbus rupicola") which is still found on Holy Isle. This species is able to survive at higher altitudes and therefore occupies a less competitive niche with fewer tree species able to tolerate the harsher conditions. The rock whitebeam interbred with the rowan / mountain ash ("Sorbus aucuparia") to produce the hybrid, a fertile separate species the Scottish whitebeam ("Sorbus arranesis") which grows well in this zone of reduced competitive growth at higher altitudes. The bastard mountain ash ("Sorbus pseudofennica") arose from a further cross
Bethlehem, Mountain Ash Hillcrest Medical Centre was built on the site in 1992/93. Bethlehem, Mountain Ash Bethlehem, Mountain Ash was a Calvinistic Methodist chapel in Pryce Street, Mountain Ash, Glamorgan, Wales. Services at Bethlehem were conducted in the Welsh language. The origins of the church date back to 1854, when meetings were held at a house in Commercial Street, and later at a house in Duffryn Street. A schoolroom was built in 1857, at a cost of £500, which became known as "Capel Bach". Memorial stones for this building were laid by William Lloyd, draper, of Commercial Street and Rees Evans, grocer, amongst