Sorbus wilmottiana

Sorbus wilmottiana, the Willmott's whitebeam,[2] is a species of whitebeam in the family Rosaceae. It is endemic to England, and is found in the Avon Gorge, in Somerset and Gloucestershire. It is threatened by habitat loss.

Sorbus wilmottiana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Sorbus
Species:
S. wilmottiana
Binomial name
Sorbus wilmottiana

Description

Sorbus wilmottiana is a small tree or shrub, up to 10m in height. It is often multistemmed, with rather upright branches.[3]

Distribution

This species is confined to the Avon Gorge, in SW England; less than 100 individuals are known.[4]

Ecology and Evolution

Sorbus wilmottiana appears to be shade intolerant, growing in rocky scrub and grassland on shallow, mildly acidic soils.[5] Sorbus wilmottiana arose from a cross between Sorbus aria and Sorbus porrigentiformis.[6]

References
  1. Beech, E., Rich, T.C.G. & Rivers, M.C. 2017. Sorbus wilmottiana. The IUCN Red List of Threatened Species 2017: e.T34732A80736838. https://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T34732A80736838.en. Downloaded on 25 October 2017.
  2. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  3. Rich,T.C.G., Houston,L., Robertson,A. & Proctor,M.C.F.(2010).Whitebeams, Rowans and Service Trees of Britain and Ireland. A monograph of British and Irish Sorbus L.B.S.B.I. Handbook No.14 Botanical Society of the British Isles. London.
  4. Rich, T.C.G., Houston, L., Robertson, A. and Proctor, M.C.F., 2010. Whitebeams, Rowans and Service trees of Britain and Ireland: a monograph of British and Irish'Sorbus' L. London: Botanical Society of the British Isles.
  5. Rich, T.C.G., Houston, L., Robertson, A. and Proctor, M.C.F., 2010. Whitebeams, Rowans and Service trees of Britain and Ireland: a monograph of British and Irish'Sorbus' L. London: Botanical Society of the British Isles.
  6. Robertson, A., Rich, T.C., Allen, A.M., Houston, L., Roberts, C.A.T., Bridle, J.R., Harris, S.A. and Hiscock, S.J., 2010. Hybridization and polyploidy as drivers of continuing evolution and speciation in Sorbus. Molecular Ecology, 19(8), pp.1675-1690.


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