Ulmus wallichiana var. tomentosa

Ulmus wallichiana var. tomentosa
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Ulmaceae
Genus:	Ulmus
Species:	Ulmus wallichiana
Variety:	**U. wallichiana var. tomentosa**
Trinomial name
**Ulmus wallichiana var. tomentosa** Melville & Heybroek

Ulmus wallichiana var. tomentosa was identified by Melville & Heybroek after the latter's expedition to the Himalaya in 1960.

Description

The tree is very similar to Ulmus wallichiana subsp. wallichiana, but distinguished by young stems and lower surfaces of leaves densely white-tomentose; the samarae are uniformly hirsute.

Pests and diseases

The species has a high resistance to the fungus Ophiostoma himal-ulmi endemic to the Himalaya and the cause of Dutch elm disease there.

Cultivation

The tree is not known to be in cultivation in the West.

References

Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. Kew Bulletin, Vol. 26 (1). Kew, London.

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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