| 1 | Leaves spirally arranged or partly (sub)opposite |
| 1' | Leaved distichous |
| 2 | Leaves spirally arranged; lamina symmetric to slightly asymmetric, often smooth above |
| 2' | Leaves opposite; lamina ± strongly asymmetric, scabrous above |
| 3 | Stipules fully amplexicaul, leaving annular scars (or only some of them semi- amplexicaul) |
| 3' | Stipules semi-amplexicaul to lateral, the scars not meeting opposite the base of the petiole |
| 4 | Stipules (0.5-)1-2.8 cm long |
| 4' | Stipules 0.2-1(-1.3) cm long |
| 5 | Stipules dark brown when dry; base of the lamina ± distinctly inequilateral and one side ± clearly decurrent and often slightly to clearly (minutely) auricled; often additional waxy glands in the axils of the 2nd to 4th pairs of lateral veins or the single waxy gland in such positions and not in the axils of the basal lateral veins |
| 5' | Stipules greenish to pale brown when dry; base of the lamina hardly unilaterally decurrent and the waxy glands, 1 or 2, in the axils of the basal lateral veins |
| 6 | Epidermis of the petiole flaking off |
| 6' | Epidermis of the petiole persistent |
| 7 | Midrib of the lamina impressed above; basal lateral veins often 1/3-1/2 the length of the lamina |
| 7' | Midrib prominent of the lamina to flat above; basal lateral veins up to 1/8-1/3 the length of the lamina |
| 8 | Lamina asymmetric; fig receptacle 0.5-1 cm diam. when dry |
| 8' | Lamina symmetric to slightly asymmetric; fig receptacle 0.2-0.3 cm. diam. when dry |
| 9 | Lamina scabrous above |
| 9' | Lamina smooth above |
| 10 | Basal lateral veins up to 1/2-2/3 the length of the lamina; tertiary venation largely perpendicular to the midrib |
| 10' | Basal lateral veins up to 1/8-1/4 the length of the lamina; not largely perpendicular to the midrib |
| 11 | Epidermis of the petiole flaking off; lamina scabrous above |
| 11' | Epidermis of the petiole persistent; lamina smooth above |
| 12 | Midrib of the lamina impressed above; peduncle usually 0.5-1.5 cm long |
| 12' | Midrib of the lamina prominent above; peduncle 1-0.3 cm long |
