| 1 | Hairs (partly) uncinate |
| 1' | Hairs straight, curved or ± crinkled |
| 2 | Leaves spirally arranged or (partly) (sub)opposite, or sometimes subverticillate |
| 2' | Leaves distichous |
| 3 | Leaves spirally arranged |
| 3' | Leaves partly opposite or subverticillate |
| 4 | Petiole usually 3-7 cm long |
| 4' | Petiole usually 0.5-3(-4) cm long |
| 5 | Fig receptacle 0.5-0.8 cm diam. when dry; lamina often smooth above, sometimes scabridulous |
| 5' | Fig receptacle 0.8-1.5 cm diam. when dry; lamina scabrous above |
| 6 | Tertiary venation scalariform; waxy glands usually partly or entirely on the midrib |
| 6' | Tertiary venation subreticulate; waxy glands not partly on the midrib |
| 7 | Tertiary venation scalariform; waxy glands usually partly or entirely on the midrib |
| 7' | Tertiary venation subreticulate; waxy glands not partly on the midrib |
| 8 | Stipules fully amplexicaul, leaving annular scars (or only some of them semi- amplexicaul) |
| 8' | Stipules semi-amplexicaul to lateral, the scars not meeting opposite the base of the petiole |
| 9 | Epidermis of the petiole flaking off |
| 9' | Epidermis of the petiole persistent |
| 10 | Midrib of the lamina impressed above; basal lateral veins often 1/3-1/2 the length of the lamina |
| 10' | Midrib prominent of the lamina to flat above; basal lateral veins up to 1/8-1/3 the length of the lamina |
| 11 | Lamina asymmetric; fig receptacle 0.5-1 cm diam. when dry |
| 11' | Lamina symmetric to slightly asymmetric; fig receptacle 0.2-0.3 cm diam. when dry |
| 12 | Basal lateral veins up to 1/2-2/3 the length of the lamina; tertiary venation largely perpendicular to the midrib |
| 12' | Basal lateral veins up to 1/8-1/4 the length of the lamina; not largely perpendicular to the midrib |
| 13 | Basal lateral veins up to 1/4 the length of the lamina; waxy glands mostly unilateral; lamina glabrous and smooth above |
| 13' | Basal lateral veins up to 1/4-1/2 the length of the lamina; waxy glands bilateral; lamina often minutely hairy or also ± scabrous above |
| 14 | Basal lateral veins running ± remotely from the margin of the lamina, branched; apex of the lamina shortly acuminate to rounded |
| 14' | Basal lateral veins running close to the margin of the lamina, unbranched; apex of the lamina acuminate to caudate |
| 15 | Epidermis of the petiole flaking off; midrib impressed above; lamina smooth and glabrous and smooth above |
| 15' | Epidermis of the petiole persistent; midrib prominent above and/or lamina at least minutely hairy and ± scabrous above |
| 16 | Stipules 1-1.5 cm long, subpersistent; fig receptacle 0.6-1 cm diam. when dry |
| 16' | Stipules 0.3-1(-1.2) cm long, caducous or of subpersistent, then the fig receptacle 0.2-0.6 cm diam. when dry |
| 17 | Waxy glands 2, in the axils of both basal lateral veins |
| 17' | Waxy gland 1, in the axil of one of the basal lateral veins, or also additional ones in the axils of other lateral veins |
| 18 | Lamina smooth; waxy glands only the axils of one of the basal lateral veins |
| 18' | Lamina scabrous, at least above; additional waxy glands mostly present in the axils of other lateral veins than the basal ones |
