Ulmus × androssowii

Ulmus × androssowii
Uzbekistan Elm, Samarkand
Hybrid parentage	U. minor var. umbraculifera × U. pumila
Origin	Uzbekistan

Ulmus × androssowii R. Kam. , commonly known as the Uzbekistan Elm, is probably an artificial hybrid. According to Lozina-Lozinskaia ^[1] the tree is unknown in the wild in Uzbekistan, and apparently arose from a crossing of U. densa var. bubyriana Späth (:now Ulmus minor 'Umbraculifera') and the Siberian Elm Ulmus pumila.

Description

The tree grows to a height of 20 m and is distinguished by its very dense spherical crown and pubescent leaves.^[2] Its compact branch structure helps the tree conserve moisture.^[3]

Pests and diseases

Not known.

Cultivation

The hybrid has been widely planted in southern and western areas of the former Soviet Union, notably along the streets of Samarkand. Cold-hardy, it prefers a rich soil and moderate humidity.

Hybrid cultivars

Ulmus 'Karagatch' is a hybrid cultivar from Turkestan, selected in the early 20th century and said to be either a backcrossing of U. pumila and U. × androssowii or simply a cultivar of × androssowii.

Synonymy

Ulmus Androssowi: Litv. in Sched. Herb. Fl. Ross. 8: 23, no. 2445, t.2, 1922.
Ulmus pumila f. androssowii (Litv.) Rehd.

Accessions

North America

Morton Arboretum, Illinois, USA. Acc. no. 353-72 (received as U. pumila f. androssowii (Litv.) Rehder).

Europe

Grange Farm Arboretum, Sutton St James, Spalding, Lincolnshire, UK. Grafted cuttings acquired 2013. Acc. nos. 1095, 1096.
Hortus Botanicus Nationalis, Salaspils, Latvia. Acc. nos. 18165, 18166 (as U. pumila f. androssowii, both from Moscow).

References

↑ Sokolov (1951). Trees & Shrubs in the U.S.S.R (in Russian), 2: 506.
↑ Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University.
↑ World Digital Library, wdl.org/en/item/5747/

External links

Photographs of and information on Uzbekistan Elm, World Digital Library

Elm species, varieties, hybrids, hybrid cultivars and species cultivars

Species and varieties

Hybrids

Ulmus davidiana var. japonica × U. minor
Ulmus × arbuscula
Ulmus × arkansana
Ulmus × brandisiana
Ulmus × hollandica var. insularum
Ulmus × mesocarpa
Ulmus × notha

Species cultivars

American elm	American Liberty Ascendens Augustine Aurea Beaverlodge Beebe's Weeping Brandon Burgoyne College Columnaris Creole Queen Deadfree Delaware Exhibition Fiorei Flick's Spreader Folia Aurea Variegata Hines Incisa Independence Iowa State Jackson Jefferson Kimley Klehmii L'Assomption Lake City Littleford Maine Markham Miller Park Minneapolis Park Moline Morden New Harmony Nigricans Patmore Pendula Penn Treaty Princeton Pyramidata Queen City Sheyenne Skinner Upright St. Croix Star Valley Forge Variegata Vase Washington Prairie Expedition

Cedar elm	Brazos Rim

Chinese elm	A. Ross Central Park = Central Park Splendor Blizzard BSNUPF = Everclear Burgundy Burnley Select Catlin Chessins Churchyard Cork Bark D.B.Cole Drake Dwarf Weeper Dynasty Ed Wood Elsmo Emer I = Athena Emer II = Allee Emerald Prairie Frosty Garden City Clone Geisha Glory Golden Rey Hallelujah Harzam = Harrison™ Hokkaido Jade Empress King's Choice Littleleaf Lois Hole Matthew Milliken Nire-keyaki Ohio Orange Ribbon Pathfinder Pendens Prairie Shade Prince Richard Red Fall Sabamiki Sagei Seiju Select 380 Sempervirens Small Frye State Fair Stone's Dwarf Taiwan The Thinker Todd True Green UPMTF = Bosque Ware's Yarralumla Yatsubusa Zettler = Heritage Ulmus parvifolia f. lanceolata

European white elm	Aureovariegata Colorans Ornata Pendula Punctata Urticifolia

Field elm	aff. Plotii Ademuz Albo-Dentata Amplifolia Argenteo-Variegata Atinia Variegata Atinia Biltii Christine Buisman Concavaefolia Cucullata Dehesa de Amaniel Dehesa de la Villa Dicksonii Dijkwel Erecta Folia Alba-Punctata Goodyeri Hoersholmiensis Holmstruph Hunnybunii Laciniata Lanuginosa Latifolia Majadahonda Microphylla Pendula Microphylla Purpurea Microphylla Rubra Pendula Picturata Plotii Propendens Purpurascens Purpurea Retiro Reverti Rubra Rueppellii Sarniensis Schuurhoek Silvery Gem Sowerbyi Stricta Suberosa Tortuosa Umbraculifera Gracilis Umbraculifera Virgata

Japanese elm	Discovery Freedom Jacan FS-Bieberich = Emerald Sunshine Mitsui Centennial Prospector Reperta Reseda Thomson Validation

Siberian elm	Ansaloni Aurea Aurescens Chinkota Dropmore Green King Hansen Harbin Manchu Mr. Buzz Park Royal Pendula Poort Bulten Puszta Pyramidalis Fiorei Turkestan Variegata

Winged elm	Lace Parasol

Wych elm	Albo-Variegata Cebennensis Cornuta Corylifolia Purpurea Corylifolia Crispa Aurea Crispa Dovaei Escaillard Fastigiata Macrophylla Fastigiata Stricta Fastigiata Variegata Fastigiata Firma Flava Gittisham Holgeri Horizontalis Insularis Latifolia Aurea Latifolia Aureo-Variegata Latifolia Nigricans Luteo Variegata Lutescens Macrophylla Maculata Minor Monstrosa Nigra Oblongata Pendula Macrophylla Pendula Variegata Ramulosa Rugosa Spectabilis Tiliaefolia Tomentosa

Hybrid cultivars

Dutch elm	Alba Angustifolia Balder Bea Schwarz Belgica Blandford Cinerea Dampieri Dauvessei Daveyi Dumont Elegantissima Eleganto-Variegata Etrusca Fjerrestad Freja Fulva Gaujardii Haarlemensis Hillieri Jacqueline Hillier Loke Macrophylla Aurea Major Microphylla Modiolina Muscaviensis Odin Pioneer Serpentina Smithii Superba Tricolor Tyr Vegeta (Chichester Elm) Vegeta (Huntingdon Elm) Virens Viscosa Wredei Ypreau

Twiggy field elm	Aurea Betulifolia Marginata Pulverulenta

Unconfirmed derivation cultivars

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