from
The Collaborative International Dictionary of English v.0.48
Tilia \Til"i*a\, n. [L., linden. Cf. {Teil}.] (Bot.)
A genus of trees, the lindens, the type of the family
{Tiliaceae}, distinguished by the winglike bract coalescent
with the peduncle, and by the indehiscent fruit having one or
two seeds. There are about twenty species, natives of
temperate regions. Many species are planted as ornamental
shade trees, and the tough fibrous inner bark is a valuable
article of commerce. Also, a plant of this genus.
[Webster 1913 Suppl.]