SORBUS TILIAEFOLIA (ROSACEAE), A NEW SPECIES FROM IRAN

Sorbus tiliaefolia is described as a new species from N. Iran. It is well characterized by the following characters. Leaves obliquely cordate, not lobed, leathery, pubescent in lower surface and as long as broad. Branches and corymbs are permanently pilose, fruits elliptic, retuse at the apex with deciduous sepals. The new species is a relative of Sorbus torminalis.