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| 1. | Leaves opposite, papery, ovate, suborbicular or elliptic, 4-8 cm long, apex rounded, base rounded to |
| 叶对生，纸质，圆卵形、近圆形或椭圆形，长4-8厘米，顶端圆形，基部圆形至宽楔形，边缘除基部外具整齐而稍带波状的锯齿，两面被黄褐色簇状短伏毛；叶柄长6-15毫米。 |
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| 2. | Leaves thickly leathery, broadly elliptic, 8-11 cm long, 4-6.5 cm wide, apex acute, base broadly cuneate |
| 叶厚革质，阔椭圆形，长8-11厘米，宽4-6.5厘米，先端急尖，基部阔楔形，全缘，背面被红褐色腺点；叶柄宽扁，长1.5-2厘米。 |
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| 3. | ovate-elliptic, 7-18 cm long and 3.5-8.5 cm wide, apex abruptly short acuminate or short acuminate, base |
| 叶革质，长圆状椭圆形，倒卵状椭圆形，长7-18厘米，宽3.5-8.5厘米，先端骤狭,短渐尖或渐尖，基部楔形、阔楔形或近圆钝，叶面深绿色，有光泽；叶柄上无托叶痕。 |
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| 4. | or oblong-obovate, 6.5-16 cm long and 3.5-6.5 cm wide, apex abruptly short acuminate, or acuminate, base |
| 叶互生，薄革质，倒卵形或长圆状倒卵形，长6.5-16厘米，宽3.5-6.5厘米，先端骤狭短渐尖或渐尖，基部楔形或阔楔形，上面深绿色，具光泽，下面被白粉；叶柄长1.5-2.5厘米，无托叶痕。 |
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