1 | Leaves thinly coriaceous or papyraceous, deciduous with the development of the young growth in spring; semi-evergreen tree |
1' | Leaves rigid, coriaceous; evergreen trees or shrubs |
2 | Leaf-margins spinose-dentate; lamina bright green, glabrous or subglabrous on both surfaces |
2' | Leaf-margins not spinose-dentate; lamina dark shining green above, golden- or brown-tomentose below |