Ulmus lamellosa

Ulmus lamellosa

Ulmus lamellosa Kerkrade Botanical Garden.
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Ulmaceae
Genus:	Ulmus
Species:	U. lamellosa
Binomial name
*Ulmus lamellosa* C.Wang & S.L.Chang
Synonyms
Ulmus taihangshanensis S.Y.Wang

Ulmus lamellosa, commonly called the Hebei Elm, is a small deciduous tree native to four Chinese provinces, Hebei, Henan, Nei Mongol, and Shanxi, to the west and south of Beijing.^[1]^[2]

Description

A slow growing tree rarely exceeding 10 m in height, U. lamellosa is often multi-stemmed, its upright branches forming a rounded crown, but occasionally forms a single, slender trunk < 20 cm d.b.h. Considered closely related to the Large-fruited Elm U. macrocarpa, it is distinguishable from that species by its mottled, flaking bark and smaller leaves. The leaves, on 3–8 mm petioles, are obovate, < 10 cm long by 5.5 cm wide, caudate at the apex, with simply to doubly serrate margins, and densely pubescent when young; the leaves turn a rich gold in autumn. The perfect wind-pollinated apetalous flowers are produced on second-year shoots in March–April; the large < 35 mm diameter samarae appear from April to May.^[1]

Pests and diseases

In the trials at the Morton Arboretum, Illinois, U. lamellosa was found to have a good resistance to Dutch elm disease.^[3] The species was also found to be among the least suitable elms for feeding and reproduction by the adult elm leaf beetle Xanthogaleruca luteola ^[4] and feeding by the Japanese Beetle Popillia japonica ^[5] in the USA.

Cultivation

Rare in cultivation beyond China, it is one of a number of Chinese species which were assessed for their horticultural merit at the Morton Arboretum, where it was adjudged suitable for planting in parks and gardens, but found to be typically intolerant of wet soils.^[3] Although known to propagate satisfactorily, U. lamellosa is only very rarely found in commerce in Europe and the USA; there are no known cultivars.

Accessions

North America

Brenton Arboretum, Dallas Center, Iowa. No accession details available.
Denver Botanic Gardens. No details available
Holden Arboretum. Acc. no. 96–178, provenance unrecorded
Morton Arboretum. Acc. nos. 317–90, 51–95, 655–2006, (listed as syn. U. taihangshanensis): 446–2007.
University of British Columbia Botanical Garden, Vancouver. Acc. no. 022715-0334-1983.
U S National Arboretum , Washington, D.C., USA. Acc. nos. 68993, 68994, 76228. Also, listed under syn. U. taihangshanensis: 76237, 76245, 68981.

Europe

Botanical Garden Kerkrade , Kerkrade, Netherlands. One large tree; no accession details available.
Calderstones Park, Liverpool. 3 mature trees by Menlove Avenue wall.^[6]
Grange Farm Arboretum, Sutton St. James, Spalding, Lincolnshire, UK. Acc. no. 702.
RBG Edinburgh, Benmore. Acc. no. 19951216. Wild collected in Yunnan province, China by Sino-Scottish Expedition.
Royal Horticultural Society gardens, Wisley, bed WA 0201; (planted 1998, the tree appeared to have succumbed to the drought of summer 2006, and all top growth had died save a few suckers at the base).
Strona Arboretum, University of Life Sciences, Warsaw, Poland.

References

1 2 Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA.
↑ Bi R-c, Yin W-b, Wang Y-n (2003) Study on a niche of population of Ulmus lamellosa in the south area of Shanxi province. Xibei Zhiwu Xuebao 23, 1266–1271.
1 2 Ware, G. (1995). Little-known elms from China: landscape tree possibilities. Journal of Arboriculture, (Nov. 1995). International Society of Arboriculture, Champaign, Illinois, USA.
↑ Miller, F. and Ware, G. (2001). Resistance of Temperate Chinese Elms (Ulmuss spp.) to Feeding of the Adult Elm Leaf Beetle (Coleoptera: Chrysomelidae). Journal of Economic Entomology 94 (1): 162–166. 2001. Entom. Soc.of America.
↑ Miller, F., Ware, G. and Jackson, J. (2001). Preference of Temperate Chinese Elms (Ulmuss spp.) for the Feeding of the Japanese Beetle (Coleoptera: Scarabaeidae). Journal of Economic Entomology 94 (2), 445–448. 2001. Entom. Soc.of America.
↑ "The Tree Register of the British Isles". Newsletter. Autumn 2015.

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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