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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids II
Ordo: Sapindales

Familia: Sapindaceae
Subfamilia: Hippocastanoideae
Tribus: Acereae
Genus: Acer
Section: Acer sect. Platanoidea
Species: Acer lobelii
Name

Acer lobelii Ten., Cat. Hort. Neapol. App., ed. 2: 69. (1819).
Synonyms

Acer platanoides subsp. lobelii (Ten.) Gams, Ill. Fl. Mitt.-Eur. 5: 282. (1924).
Acer cappadocicum subsp. lobelii (Ten.) A.E.Murray, Kalmia 12: 17. (1982).

References
Additional references

Greuter, W., Burdet, H.M. & Long, G. (eds.) 1984. Med-Checklist. A critical inventory of vascular plants of the circum-mediterranean countries. Vol. 1: Pteridophyta (ed. 2), Gymnospermae, Dicotyledones (Acanthaceae – Cneoraceae). c + 330 pp., Conservatoire et Jardin Botaniques, Genève 1984. ISBN 2-8277-0151-0. Online version. Reference page.
De Langhe, J. & Crowley, D. 2017. Acer and Dipteronia: vegetative key to species in cultivation. Ghent University Botanical Garden: 222 p., pdf. Reference page.

Links

Crowley, D. & Rivers, M.C. 2017. Acer lobelii. The IUCN Red List of Threatened Species 2017. IUCN Red List Category: Least Concern. DOI: 10.2305/IUCN.UK.2017-3.RLTS.T193529A2242167.en.
USDA, ARS, Germplasm Resources Information Network. Acer lobelii in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 13 January 2020.
International Plant Names Index. 2020. Acer lobelii. Published online. Accessed: 13 January 2020.

Vernacular names
Deutsch: Kalabrischer Ahorn
English: Lobel's Maple
italiano: Acero lobato
polski: Klon Lobela
svenska: Italiensk lönn

Acer lobelii, known as Lobel's maple[2][3] or L'Obel's maple is a rare maple tree native to southern Italy and the western Balkans.[4][5] Synonyms include Acer platanoides subsp. lobelii[4] and Acer cappadocicum Gled. subsp. lobelii (Ten.) De Jong.[6]

Description

Acer lobelii is a medium-sized deciduous tree growing 20–25 metres (66–82 ft) tall with a narrow, erect crown. It is one of very few trees with a naturally fastigiate form. The bark is greenish-grey, smooth in young trees, becoming browner and shallowly furrowed in mature trees. The shoots are green covered by a thick glaucous blue-white wax at first, this wearing off within a year but the older shoots remaining green for several years.

The leaves are opposite, palmately lobed with five lobes, 6–12 centimetres (2.4–4.7 in) long and 6–15 centimetres (2.4–5.9 in) across; the lobes are entire or with one or two irregular teeth. The leaf stems bleed a milky latex when broken.

The flowers are in corymbs, yellow-green with five sepals 3–4 millimetres (0.12–0.16 in) long; flowering occurs in early spring. The fruit is a double samara with two winged seeds, the seeds are disc-shaped, strongly flattened, 6–11 millimetres (0.24–0.43 in) across and 2–3 millimetres (0.079–0.118 in) thick. The wings are 2.5 centimetres (0.98 in) long, widely spread, approaching a 180° angle.[5][7][8][9]
Distribution

The species is rare and endangered in Italy, only occurring scattered in small groups in Italian sclerophyllous and semi-deciduous forests habitats.[10] It was widely considered endemic in southern Italy,[5][8][10] but is now also known in the western Balkans (former Yugoslavia),[4] a distribution fairly closely matched by Pinus heldreichii (Bosnian Pine).

It is closely related to, and in some respects intermediate between, Acer cappadocicum, from Asia, and Acer platanoides, from further north in Europe, hence Acer platanoides subsp. lobeli. The suggestion has been made that it could be a natural hybrid between them, but differences from both, notably the strongly glaucous bloom on the young shoots, make treatment as a distinct species more reasonable.[5][8]
Cultivation and uses

Lobel's maple is grown as an ornamental tree in northern Europe, valued for its narrow crown which makes it suitable for planting in confined spaces.[8] Many of the trees in cultivation are grafted on Acer cappadocicum rootstocks, shown by the numerous root sprouts with Acer cappadocicum foliage.[5][7]

The horticultural hybrid maple Acer × zoeschense is often cited as having Acer lobelii as one of its parents,[7] though more likely Acer cappadocicum.[8]
References

Crowley, D.; Rivers, M.C. (2017). "Acer lobelii". IUCN Red List of Threatened Species. 2017: e.T193529A2242167. doi:10.2305/IUCN.UK.2017-3.RLTS.T193529A2242167.en. Retrieved 20 November 2021.
Crowley, D.; Rivers, M.C. (2017). "Acer lobelii". IUCN Red List of Threatened Species. 2017: e.T193529A2242167. doi:10.2305/IUCN.UK.2017-3.RLTS.T193529A2242167.en. Retrieved 28 November 2019.
"Acer cappadocicum subsp. lobelii". Retrieved 28 November 2019.
Euro+Med Plantbase Project: Acer lobelii Archived September 28, 2007, at the Wayback Machine
Rushforth, K. (1999). Trees of Britain and Europe. Collins. ISBN 0-00-220013-9.
Huxley, A. (1992). New RHS Dictionary of Gardening. Macmillan. ISBN 0-333-47494-5.
Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins. ISBN 0-00-212035-6.
Mitchell, A. F. (1982). The Trees of Britain and Northern Europe. Collins. ISBN 0-00-219037-0.
Bean, W. J. (1976). Trees and Shrubs Hardy in the British Isles 8th ed. Vol. 1. John Murray. ISBN 0-7195-1790-7.
Guarino, C., & Napolitano, F. (2006). Community habitats and biodiversity in the Taburno-Camposauro Regional Park. Woodland, rare species, endangered species and their conservation. Forest@ 3 (4): 527-541. p.539: Results. Habitat and species biodiversity.

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