''Ulmus × arbuscula''
E. Wolf "bushy" is a putative
hybrid
Hybrid may refer to:
Science
* Hybrid (biology), an offspring resulting from cross-breeding
** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species
** Hybridity, the property of a hybrid plant which is a union of two dif ...
of ''
Ulmus scabra (: glabra)'' and ''
Ulmus pumila
''Ulmus pumila'', the Siberian elm, is a tree native to Asia. It is also known as the Asiatic elm and dwarf elm, but sometimes miscalled the 'Chinese Elm' (''Ulmus parvifolia''). ''U. pumila'' has been widely cultivated throughout Asia, Nor ...
'' raised from seed collected from a large wych elm in the
St. Petersburg Botanic Garden in 1902.
[Elwes, H. J. & Henry,
A. (1913). ''The Trees of Great Britain and Ireland''. Vol. 7, p.1827, Private publication, Edinburgh 1913. Reprinted 2014, Cambridge University Press, ] A similar crossing was cloned ('FL025') by the Istituto per la Protezione delle Piante (IPP), Florence, as part of the Italian elm breeding programme circa 2000.
Description
The St. Petersburg tree bore leaves 17–75 mm long with 20 lateral veins, side shoots <125 mm long and leader shoots <170 mm long, and was described as "a shrubby tree with pleasing foliage and branches appearing quite decorative".
In 1913
Späth described the tree as intermediate in appearance, with leaves 7–10 cm long, pointed-ovate, double-toothed, "dense-nerved", grey-green and rough above, light green below.
Pests and diseases
A tree at the
Ryston Hall
Ryston Hall, Ryston, Norfolk, England is a 17th-century country house built by Sir Roger Pratt for himself. The house was constructed between 1669 and 1672 in the Carolean style. In the late 18th century, John Soane made alterations to the hous ...
arboretum,
Norfolk
Norfolk () is a ceremonial and non-metropolitan county in East Anglia in England. It borders Lincolnshire to the north-west, Cambridgeshire to the west and south-west, and Suffolk to the south. Its northern and eastern boundaries are the No ...
, listed as ''Ulmus arbusculata''
[ and obtained from the ]Späth nursery The Späth (often spelt ''Spaeth'') family created one of the world's most notable plant nurseries of the 19th and early 20th centuries. The nursery had been founded in 1720 by Christoph Späth but removed to the erstwhile district of Baumschulen ...
in Berlin
Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...
before 1914,Dutch elm disease
Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into Americas, America ...
prevalent in the 1930s.
Cultivation
The tree was for a short time from 1913 distributed by the Späth nursery, as ''Ulmus arbuscula'' E. Wolf, described as "(''montana'' × ''pumila''), ..an as yet uncommon hybrid",[Späth, L., Catalogue 158 (1913-14; Berlin), p.136](_blank)
/ref> a specimen being supplied to Ryston Hall at that time. It does not appear in their post-war catalogues. Another, labelled ''Ulmus arbuscula'' Wolf and described as a large tree, stood in the Nymphenburg Palace Park, Munich
Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the States of Germany, German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the List of cities in Germany by popu ...
, in the mid-20th century.bioportal.naturalis.nl, specimen L.1590713
/ref> Two trees survive in eastern European arboreta (see 'Accessions'). ''U. × arbuscula'' is not known to have been introduced to North America or Australasia.
Accessions
;Europe
*Butterfly Conservation
Butterfly Conservation (BC) is a UK-wide nonprofit environmentalist organization and charity dedicated to conserving butterflies, moths, and the environment. The charity uses its research to provide advice on how to conserve and restore butterfly ...
Hants & IoW Branch elm trials, Cams Bay, Fareham, UK. One specimen of IPP clone 'FL025' planted circa 2005.
*Grange Farm Arboretum
The Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam.Ostler, J. (2009) ' ...
, Lincolnshire
Lincolnshire (abbreviated Lincs.) is a county in the East Midlands of England, with a long coastline on the North Sea to the east. It borders Norfolk to the south-east, Cambridgeshire to the south, Rutland to the south-west, Leicestershire ...
, UK. Acc. no. 1097 (grown from seed).
* Hortus Botanicus Nationalis, Salaspils
Salaspils (; german: Kircholm; sv, Kirkholm) is a town in Latvia, the administrative centre of Salaspils Municipality. The town is situated on the northern bank of the Daugava river, 18 kilometers to the south-east of the city of Riga.
Histo ...
, Latvia. Acc. nos. 18093, 18094. Planted 1964, no details available.[Hortus Botanicus Nationalis, Salaspils, Latvia, Accessions List 2006]
* Strona Arboretum, University of Life Sciences, Warsaw
Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is officia ...
, Poland.
References
External links
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{{DEFAULTSORT:Ulmus arbuscula
arbuscula
Arbuscula ( lat, Arbuscŭla; d. between 54 and 35 BCE) was a woman stage performer of ancient Rome. She was a celebrated actor in pantomimes during the 1st century BCE, when most of the female parts at the time were played by men at least in traged ...
Plant nothospecies
Ulmus articles missing images
Ulmus hybrids