| 1. | Leaves thick leathery , obovate - lanceolate , obovate or oblong - lanceolate , 4 - 12 cm long and 2 - 3 . 5 cm wide , apex rounded , sometimes emarginated , base cuneate , abaxial surface thinly covered with a grayish to fawn indumentum at first , later glabrescent ; petiole 1 - 1 . 5 cm long , glabrescent 叶厚革质,倒卵状披针形、倒卵形或长圆状披针形,长4 - 12厘米,宽2 - 3 . 5厘米,顶端近圆形,有时微缺,基部楔形,下面初时薄被灰白色或淡土黄色丛卷毛,后近无毛;叶柄长1 - 1 . 5厘米,后近无毛。 |