Biology:Karpatiosorbus devoniensis

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Short description: Species of tree

Karpatiosorbus devoniensis
Devon Whitebeam.JPG
Devon whitebeam, leaves and young fruit
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Karpatiosorbus
Species:
K. devoniensis
Binomial name
Karpatiosorbus devoniensis
(E.F.Warb.) Sennikov & Kurtto
Synonyms[2]
  • Pyrus rotundifolia E.S.Marshall
  • Sorbus latifolia Syme,p.p.69
  • Sorbus devoniensis E.F.Warb.

Karpatiosorbus devoniensis is known by the English name of Devon whitebeam[3] and formally as Broad-leaved Whitebeam. When the fruit was reported as sold at Barnstaple Pannier Market [4] the name French Eagles was used, apart from 1929 when they were reported as eagle-berries. When the trees were reported as seen growing wild on botanical walks they were referred to as French Hails (once each as French hail and French Hales). Broad-leaved white-beam, which was the common name until Devon Whitebeam took over, was used once in 1907. The term Otmast was used once as a pet name,[5] as its true identity was not known.[6] The term sorb apple has been used recently but completely without foundation, it is another example of a name being attributed to the wrong species. It is a species of whitebeam, trees and shrubs in the family Rosaceae. It is endemic to the British Isles, growing wild in areas of Devon, Cornwall, Somerset and south-east Ireland as a native and north-east Ireland as an introduction.

It probably did not exist before the last ice age, arising from a hybrid between Sorbus torminalis, the wild service tree, and another species of whitebeam. It is a close relative of the no parking whitebeam, Karpatiosorbus admonitor, and two other British natives and around 40 species in Europe.[7]

Description

It will form a deciduous tree to about 12 metres height.

The leaves are entire, lobed, dark green above, the underside has a dense layer of grey hairs.

It flowers at the end of May, they are white with 5 petals.

The fruits ripen at the end of October. They are orange-brown to brown, and edible. Sorbus devoniensis fruit

Locations found

  • along the River Taw and River Torridge
  • Roborough Down near Plymouth is where the type specimen was taken
  • Little Haldon, at Bishopsteignton along the Postman's Path
  • Boyton, Cornwall
  • South East and North East Ireland (rarely)
  • Halsdon Nature Reserve near Great Torrington managed by the Devon Wildlife Trust - a small tree
  • Uppacott Wood Nature reserve between Barnstaple and Bideford also managed by the Devon Wildlife Trust, has a few trees
  • Watergate Bridge near Great Torrington, grid ref SS468175. The plant growing on the old platform has been removed
  • Leigh Cross, Zeal Monachorum
  • Watergate, Horwood
  • Washington Park Arboretum in Seattle, WA, USA. Some plants in cultivation are incorrectly named so this should be verified
  • Between Martinhoe and Lynton in heath and woodland. Importantly not in the East Lyn valley as those plants are Sorbus admonitor

References

  1. Beech, E.; Rivers, M.C. (2017). "Sorbus devoniensis". IUCN Red List of Threatened Species 2017: e.T79748504A79748508. doi:10.2305/IUCN.UK.2017-2.RLTS.T79748504A79748508.en. https://www.iucnredlist.org/species/79748504/79748508. 
  2. The Plant List: A Working List of All Plant Species, http://www.theplantlist.org/tpl1.1/record/rjp-69, retrieved 27 December 2016 
  3. (xls) BSBI List 2007, Botanical Society of Britain and Ireland, https://bsbi.org/download/3542/, retrieved 2014-10-17 
  4. Cann, David (2016) Sorbus subgenus Torminaria (Sorbus latifolia agg.) in Devon newspapers. BSBI News No. 133 September pp. 12-17
  5. Heligan Survivors ed. Philip McMillan Browse (2009). Alison Hodge. pp 54-55. ISBN 978-0-906720-53-0
  6. Browse, P.M.M. (2005), Heligan: Fruit, Flowers and Herbs, Alison Hodge, pp. 88–89, ISBN 9780906720400, https://books.google.com/books?id=D36IWrYiixgC 
  7. Flora Europaea. 

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