| Tilia mongolica | |
|---|---|
 | |
| Mongolian lime leaf | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Tilia |
| Species: | T. mongolica |
| Binomial name | |
| Tilia mongolica | |
Tilia mongolica Maxim. , commonly known as Mongolian lime, is a tree native to mountains of the northern China, growing up to elevations of 1200–2200 m. [1]
Mongolian lime is a small slow-growing deciduous tree of rounded, compact habit, usually reaching < 10 m in height. The dense, twiggy growth and glabrous reddish shoots bear leaves 4–7.5 cm long, typically coarsely toothed with 3–5 lobes, superficially resembling ivy or maple leaves. The emergent leaves are bronze, turning glossy green in summer, and bright yellow in autumn. [2] The greenish-white flowers are borne in clusters of 6–20 in June and July. [3]
Inner Mongolia, Shanxi, Henan, Hebei, Beijing, Liaoning, isolated locality in North Korea. [4]
1863: In the summer the mongolian lime was first collected by Pere David on slopes of the Baihua mountain [5] in the Taihang mountain range about 120 km west to Beijing city center. [6] The specimens collected by David can be seen in the herbarium of the National Museum of Natural History, Paris. [7]
1871: 12 July it was collected by Nikolay Przhevalsky on southern slope of Muni-ula in western part of the Yin Mountains in Inner Mongolia. [8] One of Przhevalsky's specimens is held as an isotype in the herbarium of the Kew Gardens, London. [9]
1877: Again collected on the Baihua mountain by Emil Bretschneider. [8]
1880: Karl Maximovich published first scientific description of the tree based on the specimens collected by Przhevalsky and Bretschneider. [8]
1880: Bretschneider sent seed to the Jardin des Plantes at Paris. [5]
1882: Bretschneider sent seed to the Arnold Arboretum at Boston. [5]
1896: A tree in the Jardin des Plantes, raised from the seed sent by Bretschneider, flowered. Some of the gathered seed were sent to the Kew Gardens. [5]
1907: A tree raised in the Kew Gardens flowered while only 1.5 m high. [10]
1913: Тhe mongolian lime was introduced to commerce in the UK by Harry Veitch at the Coombe Wood Nursery from material collected for him by William Purdom in northern China. [10]
A tree planted in 1896-1897 at the Kew Gardens reached in 2014 the height 14 m and still flourishes. [5] [10]
The TROBI champion tree grows at Thorp Perrow Arboretum, Yorkshire. Planted in 1936, it measured 20 m tall by 59 cm d.b.h. in 2004. [11]
A specimen planted in 1983 grows at Exbury Gardens in Hampshire.
Tilia is a genus of about 30 species of trees or bushes, native throughout most of the temperate Northern Hemisphere. The tree is known as linden for the European species, and basswood for North American species. In Great Britain and Ireland they are commonly called lime trees, although they are not related to the citrus lime. The genus occurs in Europe and eastern North America, but the greatest species diversity is found in Asia. Under the Cronquist classification system, this genus was placed in the family Tiliaceae, but genetic research summarised by the Angiosperm Phylogeny Group has resulted in the incorporation of this genus, and of most of the previous family, into the Malvaceae.
A herbarium is a collection of preserved plant specimens and associated data used for scientific study.
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'. U. pumila has been widely cultivated throughout Asia, North America, Argentina, and southern Europe, becoming naturalized in many places, notably across much of the United States.
Ulmus wallichianaPlanch., the Himalayan elm, also known as the Kashmir elm and Bhutan elm, is a mountain tree ranging from central Nuristan in Afghanistan, through northern Pakistan and northern India to western Nepal at elevations of 800–3000 m. Although dissimilar in appearance, its common name is occasionally used in error for the cherry bark elm Ulmus villosa, which is also endemic to the Kashmir, but inhabits the valleys, not the mountain slopes. The species is closely related to the wych elm U. glabra.
Ulmus davidiana var. japonica, the Japanese elm, is one of the larger and more graceful Asiatic elms, endemic to much of continental northeast Asia and Japan, where it grows in swamp forest on young alluvial soils, although much of this habitat has now been lost to intensive rice cultivation.
The Sir Harold Hillier Gardens is an arboretum comprising 72 hectares accommodating over 42,000 trees and shrubs in about 12,000 taxa, notably a collection of oaks, camellia, magnolia and rhododendron.
Augustine Henry was a British-born Irish plantsman and sinologist. He is best known for sending over 15,000 dry specimens and seeds and 500 plant samples to Kew Gardens in the United Kingdom. By 1930, he was a recognised authority and was honoured with society membership in Belgium, Czechoslovakia, Finland, France, and Poland. In 1929 the Botanical Institute of Peking dedicated to him the second volume of Icones plantarum Sinicarum, a collection of plant drawings. In 1935, John William Besant was to write: 'The wealth of beautiful trees and flowering shrubs which adorn gardens in all temperate parts of the world today is due in a great measure to the pioneer work of the late Professor Henry'.
Ulmus bergmannianaC.K.Schneid., commonly known as Bergmann's elm, is a deciduous tree found across much of China in forests at elevations of 1500–3000 m.
Ulmus castaneifoliaHemsley, the chestnut-leafed elm or multinerved elm, is a small deciduous tree found across much of China in broadleaved forests at elevations of 500–1,600 metres (1,600–5,200 ft).
Ulmus uyematsuiHayata, commonly known as the Alishan elm, is endemic to forests at elevations of 800–2,500 metres (2,600–8,200 ft) in Alishan, Chiayi County, central Taiwan, where it is considered one of the minor tree species. The tree was first named and described by the Japanese botanist Bunzō Hayata in 1913, in the aftermath of the First Sino-Japanese War, when the Republic of Formosa was ceded to Japan.
Ulmus chenmouiW. C. Cheng, commonly known as the Chenmou, or Langya Mountain elm, is a small deciduous tree from the more temperate provinces of Anhui and Jiangsu in eastern China, where it is found at elevations below 200 m on the Langya Shan and Baohua Shan mountains. The tree was unknown in the West until 1979, when seeds were sent from Beijing to the De Dorschkamp research institute at Wageningen in the Netherlands.
Ulmus chumlia is a small deciduous tree endemic to the Himalaya from the Kashmir to central Nepal, and the provinces of Yunnan, Sichuan and Xizang (Tibet) in China. It is found in broadleaf forest on mountain slopes at elevations of 1000–3000 m. Richens noted that the species appeared to be the same as that named by Grudzinskaya as Ulmus androssowii var. virgata, which she considered an intermediate between U. minor and U. pumila.
Ulmus davidiana, also known as the David elm, or Father David elm, is a small deciduous tree widely distributed across China, Mongolia, Korea, Siberia, and Japan, where it is found in wetlands along streams at elevations of 2000–2300 m (6,500–7,500 ft). The tree was first described in 1873 from the hills north of Beijing, China.
Ulmus lanceifoliaRoxburgh, ex Wall., occasionally known as the Vietnam elm, is a very large tree endemic to a wide area of southern Asia. Its range extends southeast and eastwards from Darjeeling in the Himalaya, through Bangladesh, southern China, Myanmar, Thailand, Laos, Vietnam and on discontinuously into Indonesia, straddling the Equator in Sumatra and Celebes.
Ulmus minorsubsp.canescens is a small deciduous tree occasionally known by the common names grey elm, grey-leafed elm, and hoary elm. Its natural range extends through the lands of the central and eastern Mediterranean, from southern Italy, the islands of Sicily, Malta, Crete, Rhodes and Cyprus, and through Thrace to Turkey, and as far south as Israel, where it is now considered rare and endangered in the wild. The tree is typically found amidst the comparatively humid coastal woodlands and scrublands.
Ulmus laciniata var. nikkoensisRehder, the Nikko elm, was discovered as a seedling near Lake Chūzenji, near Nikkō, Japan, and obtained by the Arnold Arboretum in 1905. The taxonomy of the tree remains a matter of contention, and has been considered possibly a hybrid of U. laciniata and U. davidiana var. japonica. However, in crossability experiments at the Arnold Arboretum in the 1970s, U. laciniata, a protogynous species, was found to be incompatible with U. davidiana var. japonica, which is protandrous.
Ulmus bergmanniana var. lasiophyllaC. K. Schneid. is endemic to China, on mountain slopes at elevations of 2100–2900 m in Gansu, Shaanxi, north-west Sichuan, south-east Xizang, and north-west Yunnan.
Ren-Chang Ching, courtesy name Zinong, was a Chinese botanist who specialised in ferns.
Tilia tuan is a species of flowering plant found in forests at elevations of 1200–2400 m in the central Chinese provinces of Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangsu, Jiangxi, Sichuan, Yunnan, and Zhejiang. The species has long been regarded as the most variable lime within China, acquiring numerous synonyms; three varieties are currently recognized. The tree was first described by Henry who discovered it in 1888.
Tilia carolinianaMill. is a species of tree in the family Malvaceae native to the southern and south-eastern states of the U.S., and Mexico.
Pigott, Donald (2012). Lime-trees and basswood: a biological monograph of the genus Tilia. Cambridge: Cambridge University Press. ISBN 9780521840545. pp. 160–167.