Ulmus 'Plantyn'

Infobox Cultivar | name = "Ulmus" hybrid


image_caption = 'Plantyn', Amsterdam. Photo: Ronnie Nijboer, Bonte Hoek kwekerijen
hybrid = ('Exoniensis' × "U. wallichiana") × ("U. minor" '1' × "U. minor" '28')
cultivar = 'Plantyn'
origin = Wageningen, The Netherlands

'Plantyn' (Anglicized form of Plantijn) was one of three Dutch hybrid elms released in 1973. Derived from a crossing of the Dutch hybrids '202' ("U. glabra" 'Exoniensis' × "U. wallichiana") and '302' ("U. minor" '1' × "U. minor" '28'), it was to prove of great significance in later developments.Heybroek, H. M. (1976). "Ned. Bosbouw. Tijdschr." 48: 117-123, 1976.] Heybroek, H. M. (1983). Resistant Elms for Europe. In Burdekin, D. A. (Ed.) Research on Dutch elm disease in Europe. "For. Comm. Bull." 60. pp 108 - 113. ] A selfed seedling was to become the first Dutch clone to prove immune to disease, released in 1989 as 'Columella'. 'Plantyn' was also destined to be the female parent of the hugely successful 'Nanguen' (Lutèce) released in 2002.Heybroek, H. M. (1993). The Dutch Elm Breeding Program. In Sticklen & Sherald (Eds.) (1993). "Dutch Elm Disease Research", Chapter 3. Springer Verlag, New York, USA.] .

Description

'Plantyn' is a fast-growing tree, with upright branching forming a broad crown where grown in isolation. The leaves are < 100 mm long by 70 mm broad, on < 10 mm petioles.

Pests and diseases

'Plantyn' was to prove no more resistant to Dutch elm disease than its contemporaries 'Dodoens' and 'Lobel'.

Cultivation

Owing to its only moderate resistance to Dutch elm disease, sales in the Netherlands declined from over 7,000 in 1979 to zero in 2004Hiemstra, J.A. et al. (2007)"Belang en toekomst van de iep in Nederland". Praktijkonderzoek Plant & Omgeving, Wageningen UR, Netherlands.] [http://www.deboomkwekerij.nl/tsde/resources/attachments/download/true/im/false/id/69628/Iep.pdf] . Like most of its compatriots, it has proven very tolerant of sea winds, but has been eclipsed by its superior offspring.Burdekin, D. A. & Rushforth, K. D. (Revised by Webber J. F. 1996). Elms resistant to Dutch elm disease. "Arboricultural Research Note" 2/96. Arboricultural Advisory and Information Service, Alice Holt, Farnham, UK. ] The tree was not commercially released in the USA, but was evaluated at the Iowa State University in the 1970s Gibbs, J. N., Brasier, C. M., McNabb Jnr., H.S., and Heybroek, H. M. (1975). Further studies on the pathenogenicity in Ceratocystis ulmi. "Europ. Journ. Forest. Path." 5 (3): 161-174.] and may still survive there. It was also included in trials [http://www.netspace.net.au/~stephenf/Resistant_Elms.html] in Canberra, Australia, started in 1988, although it is reputed not to have thrived in that environment.

Cultivars

*'Columella'
*Unreleased cultivars raised by IPP, Florence: 'FL 580' (Heybroek's '948')

Hybrid cultivars

*'Arno', 'Nanguen' (Lutèce), 'Plinio', 'San Zanobi', 'Warnoux' (Vada)
*Unreleased cultivars raised by IPP, Florence: 'FL 568' ("U. pumila" × 'Plantyn'), 'FL 620' & 'FL 624' (("U. pumila × U. minor") × 'Plantyn'), 'FL 688' (('Plantyn' × "U. minor") × 'Plantyn')

Etymology

The tree is named for the French printer and humanist Christoffel Plantijn (France: Christophe Plantin).

ynonymy

'Plantijn' (original Dutch form of the name).

Accessions

;Europe
*Arboretum de La Petite Loiterie [http://lapetiteloiterie.free.fr/html/presentation/especes.html] , Monthodon, France. No details available
*Brighton & Hove City Council, UK, NCCPG Elm Collection [http://www.brighton-hove.gov.uk/index.cfm?request=c1108042]
*Kensington Gardens, London. UK champion, 16 m high, 45 cm d.b.h. in 2001 Johnson, Owen (ed.) (2003). "Champion Trees of Britain & Ireland". Whittet Press, ISBN 9781873580615.] .
*Royal Botanic Garden Kew acc. no. 1980-731
*Sir Harold Hillier Gardens, UK, acc. no. 1982.4057
*Westonbirt Arboretum [http://www.forestry.gov.uk/forestry/infd-62qk8w] ,Tetbury, Glos., UK, planted 1981, acc. no. 1980/157.

Nurseries

;Europe
*Johan Van Herreweghe [http://www.jvh-nurseries.com] , Schellebelle, Belgium.
*PlantenTuin Esveld [http://www.esveld.nl/catalen/heestersu.htm#ulmus] , Boskoop, Netherlands.
*Westerveld Boomkwekerij B.V. [http://www.westerveldbv.nl/] , Opheusden, Netherlands

References