Sorbus pseudofennica (also called Arran service-tree[2] or Arran cut-leaved whitebeam) is a species of plant in the family Rosaceae. Endemic to the Isle of Arran in Scotland, it is threatened by habitat loss.[1] It is thought to be a naturally occurring hybrid between S.arranensis and S.aucuparia, probably with additional backcrossing with S.aucuparia. Sorbus arranensis is itself a hybrid between S.rupicola and S. aucuparia. Apomixis and hybridization are common in some groups of Sorbus species.[3]
BSBI List 2007(xls). Botanical Society of Britain and Ireland. Archived from the original(xls) on 26 June 2015. Retrieved 17 October 2014.
Robertson, A.; Newton, A.C. & Ennos, R.A. (2004). "Multiple hybrid origins, genetic diversity and population genetic structure of two endemic Sorbus taxa on the Isle of Arran, Scotland". Molecular Ecology. 13 (1): 123–134. doi:10.1046/j.1365-294X.2003.02025.x. PMID14653794. S2CID38956138.
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