| 1 | Leaves spirally arranged or partly (sub)opposite, sometimes subverticillate |
| 1' | Leaves distichous |
| 2 | Leafy twigs and lower surface of the lamina (at least partly) with (dark) brown hairs |
| 2' | Leafy twigs and lamina beneath with whitish hairs or indumentum absent |
| 3 | Basal lateral veins up to 1/3-1/2 the length of the lamina; petiole 0.4-1(-1.5) cm long, slightly different to almost equal in length on the same twig |
| 3' | Basal lateral veins up to 1/4(-1/3) the length of the lamina; petiole (0.5-)1-8(-12) cm long, distinctly different in length on the same twig |
| 4 | Epidermis of the petiole flaking off |
| 4' | Epidermis of the petiole persistent |
| 5 | Stipules almost subulate, coriaceous, often tufted and subpersistent at the shoot apices |
| 5' | Stipules subovate, chartaceous, not tufted and subpersistent at the shoot apices |
| 6 | Waxy glands largely on the midrib; peduncle 0.5-1.5(-3) cm long |
| 6' | Waxy glands not on the midrib; peduncle 0-0.3 cm long |
| 7 | Leafy twigs and lamina glabrous |
| 7' | Leafy twigs and lamina hairy, at least sparsely and/or minutely |
| 8 | Basal lateral veins up to 1/3-1/2 the length of the lamina; peduncle 1-5 cm long; fig receptacle 0.8-1.5(-2) cm diam. when dry |
| 8' | Basal lateral veins up to (1/20-)1/4-1/3 the length of the lamina; peduncle up to 1 cm long, or if, longer then the fig receptacle usually up to 0.8 cm diam. when dry |
| 9 | Waxy glands largely on the midrib; peduncle 0.5-1.5(-3) cm long |
| 9' | Waxy glands not on the midrib; peduncle 0-0.3 cm long |
| 10 | Stipules fully amplexicaul, leaving annular scars (or only some of them semi-amplexicaul) |
| 10' | Stipules semi-amplexicaul to lateral, the scars not meeting opposite the base of the petiole |
| 11 | Stipules (0.5-)1-2.8 cm long |
| 11' | Stipules 0.2-1(-1.3) cm long |
| 12 | Leafy twigs, petioles and/or stipules hairy, often sparsely and/or minutely so |
| 12' | Leafy twigs, petioles, and stipules entirely glabrous |
| 13 | 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 |
| 13' | 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 |
| 14 | Basal lateral veins up to 1/3-1/2 the length of the lamina |
| 14' | Basal lateral veins up to 1/20-1/3 the length of the lamina |
| 15 | 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 |
| 15' | 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 |
| 16 | Lamina lanceolate-linear |
| 16' | Lamina elliptic to oblong |
| 17 | Epidermis of the petiole flaking off |
| 17' | Epidermis of the petiole persistent |
| 18 | Lamina chartaceous to subcoriaceous, margin bilaterally crenate-dentate to sublobate |
| 18' | Lamina coriaceous, margin entire or unilaterally sublobate |
| 19 | Lamina with cystoliths (visible as minute pustules) only beneath; basal lateral veins mostly up to 1/3-1/2 the length of the lamina; lamina drying (dark) brown |
| 19' | Lamina with cystoliths (visible as minute pustules) on both sides; basal lateral veins up to 1/8-1/3 the length of the lamina; lamina drying greenish |
| 20 | Leafy twigs and petioles entirely glabrous; epidermis of the petioles of the youngest leaves usually not yet flaking off |
| 20' | Leafy twigs and petioles minutely and sparsely hairy; epidermis of the petioles of the youngest leaves already flaking off |
| 21 | Lamina strongly asymmetric and the lobe of the broad side of the lamina base often covering the petiole; 2 waxy glands in the axils of the basal lateral veins at the broad side of the lamina and only 1 in the axil of the main basal lateral veins at the narrow side |
| 21' | Lamina symmetric or ± strongly asymmetric, but then not a lobe of the lamina base covering the petiole, with 2 glands (one in each of the axils of (the major) basal lateral veins), 1 gland in the axil of one of (the major) basal lateral veins, or also additional glands in the axils of other lateral veins |
| 22 | Basal lateral veins up to 1/4-1/2 the length of the lamina |
| 22' | Basal lateral veins up to 1/4 the length of the lamina |
| 23 | Basal lateral veins running ± remotely from the margin of the lamina, branched; apex of the lamina shortly acuminate to rounded |
| 23' | Basal lateral veins running close to the margin of the lamina, unbranched; apex of the lamina acuminate to caudate |
| 24 | Waxy glands 2, in the axils of both basal lateral veins; petiole 0.2-1 cm long; leafy twigs and petioles hairy, although minutely and/or sparsely |
| 24' | Waxy gland 1, in the axil of one of the basal lateral veins; petiole (0.5-)1-2 cm long; leafy twigs and petioles entirely glabrous |
| 25 | Waxy glands 2 (in the axils of both basal lateral veins); fig receptacle 0.8-1.2 cm diam. when dry |
| 25' | Waxy gland 1 (in the axil of one of the basal lateral veins); fig receptacle 0.3-0.8 cm diam. when dry |
| 26 | Epidermis of the petiole flaking off |
| 26' | Epidermis of the petiole persistent |
| 27 | Midrib impressed above; base of the lamina at the broad side extended by an elliptic lobe, or in smaller leaves just with a strip of mesophyll along the petiole |
| 27' | Midrib prominent above; base of the lamina without lobe or extended strip of mesophyll |
| 28 | Lamina glabrous and/or (almost) smooth above |
| 28' | Lamina ± scabrous above |
| 29 | Lamina lanceolate; lateral veins 11-16 pairs, departing at wide angles, up to 90°; basal lateral veins up to 1/20-1/10 the length of the lamina |
| 29' | Lamina elliptic to oblong to subobovate, or if lanceolate, then the lateral veins (3-)4-11 pairs and/or the basal lateral veins up to 1/6 the length of the lamina |
| 30 | Leafy twigs and petioles glabrous |
| 30' | Leafy twigs and petioles (densely or sparsely) hairy |
| 31 | Lamina obliquely rhombic; fig receptacle 1.5-2 cm diam. when dry |
| 31' | Lamina not rhombic; fig receptacle 0.3-1.3(-1.5) cm diam. when dry |
| 32 | Waxy gland 1, in the axil of one of the basal lateral veins, or also additional ones in the axils of other lateral veins |
| 32' | Waxy glands 2, in the axils of both basal lateral veins |
| 33 | Lamina smooth; waxy glands only in the axil of one of the basal lateral veins |
| 33' | Lamina scabrous, at least above; additional waxy glands mostly present in the axils of other lateral veins than the basal ones |
| 34 | Basal lateral veins branched |
| 34' | Basal lateral veins unbranched |
