Leaves with 3 major veins or 1 central vein?

Leaves with 3 major veins spreading from base
Bark smooth or with irregular corky warts and/or ridges
Hackberries (Celtis spp.)
Hackberries (Celtis spp.)

Leaves with 1 main central vein
Bark scaly or fissured into parallel ridges, without warty protrusions