Қайын ағашы: сипаттамасы, қолданысы және тарихы

Plant genus

ancient Romans named "Tilia"

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 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. Tilia species are mostly large, deciduous trees, reaching typically tall, with oblique cordate (heart shaped) leaves across. As with elms, the exact number of species is uncertain, as many of the species can hybridise readily, both in the wild and in cultivation. They are hermaphroditic, having perfect flowers with both male and female parts, pollinated by insects. Tilia is the only known ectomycorrhizal genus in the family Malvaceae. Studies of ectomycorrhizal relations of Tilia species indicate a wide range of fungal symbionts and a preference toward Ascomycota fungal partners.

Linden trees produce soft and easily worked timber, which has very little grain and a density of 560 kg/m3. It was often used by Germanic tribes for constructing shields. It is a popular wood for model building and for intricate carving. Especially in Germany, it was the classic wood for sculpture from the Middle Ages onwards and is the material for the elaborate altarpieces of Veit Stoss, Tilman Riemenschneider, and many others. In England, it was the favoured medium of the sculptor Grinling Gibbons (1648–1721). The wood is used in marionette and puppet making and carving. Having a fine, light grain and being comparatively light in weight, it has been used for centuries for this purpose; despite the availability of modern alternatives, it remains one of the main materials used In China, it was also widely used in carving or furniture, interior decorating, handicrafts, etc. therefore, people use logs of Tilia trees to cultivate S. edulis and even Black fungus or shiitake mushrooms with excellent results. Currently, "椴木黑木耳/Tilia logs black fungus" or "椴木香菇/Tilia logs shiitake mushrooms" has become a term for a method of cultivating black fungus and shiitake mushrooms and "椴木/Tilia logs" no longer exclusively refers to Tilia tree wood but also to other woods suitable for black fungus or shiitake mushrooms cultivation. In Russian, "linden made" (липовый, lipoviy) is a term for forgery, due to the popularity of the material for making forged seals in the past centuries.

Known in the trade as basswood, particularly in North America, its name originates from the inner fibrous bark of the tree, known as bast. A strong fibre is obtained from the tree by peeling off the bark and soaking it in water for a month, after which the inner fibres can be easily separated. Bast obtained from the inside of the bark of the Tilia japonica tree has been used by the Ainu people of Japan to weave their traditional clothing, the attus. Excavations in Britain have shown that lime tree fibre was preferred for clothing there during the Bronze Age. The Manchu people in the mountains of Northeast China made ropes, baskets, raincoats, large fishing nets, and guide lines for gunpowder from the bast. Similar fibres obtained from other plants are also called bast: see Bast fibre.

Tilia is a high quality wild honey plant. In China, "椴树蜜/Tilia honey" is produced in the northeast region. White in color, it is called "white honey" or "snow honey". Heilongjiang is well known throughout the country for producing high quality "Tilia honey": Heilongjiang not only has lush Tilia trees, but also a rare and excellent bee species "东北黑蜂/Northeast Black Bee" to collect honey（Raohe County is the location of the national "东北黑蜂自然保护区/Northeast Black Bee Nature Reserve". It is the only nature reserve for bees in Asia.). "Tilia honey" mainly comes from Tilia amurensis and Tilia mandshurica.

The dried flowers are mildly sweet and sticky, and the fruit is somewhat sweet and mucilaginous. Linden flower tea has a pleasing taste, due to the aromatic volatile oil found in the flowers. Phytochemicals in the Tilia flowers include flavonoids and tannins with astringent properties. The nectar contains a major secondary metabolite with the trivial name tiliaside (1 [4 (1 hydroxy 1 methylethyl) 1,3 cyclohexadiene 1 carboxylate] 6 O β D glucopyranosyl β D glucopyranose) which is transformed in the gut of bumblebees to the aglycone (i. e., the gentiobiose group is cleaved) which is bioactive against a common and debilitating gut parasite of bumblebees, Crithidia bombi. This naturally occurring compound may support bees to manage the burden of disease one of the major contributors to pollinator decline.

A beverage made from dried linden leaves and flowers is brewed and consumed as a folk medicine and relaxant in many Balkan countries, including Serbia and Greece. Usually, the double flowered species are used to make perfumes. The leaf buds and young leaves are also edible raw. Tilia species are used as food plants by the larvae of some Lepidoptera; see List of Lepidoptera that feed on Tilia.

This list comprises the most widely accepted species, hybrids, and cultivars".