<unk>  is a genus of about 30 species of<unk> s native throughout most of the temperate Northern Hemisphere. They are generally called lime in Britain and linden or basswood in North America. The greatest species diversity is found in Asia, and the genus also occurs in Europe and eastern North America, but not western North America. Under the Cronquist classification system, this genus was placed in the family<unk> ceae, but genetic research by the Angiosperm Phylogeny Group has resulted in the incorporation of this family into the Malvaceae.<unk>  species are large deciduous<unk> s, reaching typically 20 to 40 m tall, with oblique-cordate leaves 6 to 20 cm across. The exact number of species is subject to considerable uncertainty, as many or most of the species will hybridise readily, both in the wild and in cultivation.
Tilia tree
Sponge
Dental anatomy
Spindle apparatus
Olive tree
Agar plate
Hard palate
Epiglottitis classification