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Tilia is a common tree in the temperate latitudes of the northern hemisphere. The genus consists of approximately 40 large or medium-sized deciduous species (Fig. 1). The genus Tilia is the only representative of the family of Tiliaceae. Most of the American and European species have 82 chromosomes. The East Asiatic species have 164 chromosomes (Darlington and Wylie 1955). Young shoots are characterized by a zigzag growth. Winter buds are prominent. The leaves alternate in two opposite rows on the branches, and are toothed and heart-shaped at the base. Flowers are small and bracteae are large. Fruits are nut-like (Bean 1980). Tilia has a great recovery potential, as a result of which, trees may reach a very great age. Tilia prefers sun and a rich, humid, loamy soil. The trees have a well-developed root system and are not sensitive to wind. |
