Sect. Pittosporum (Pittosporaceae)
组1. 海桐组——Sect. I, Pittosporum
名称文献：Trivalvatae Gowda
形态特征：蒴果3-5片，椭圆形或球形，有时2片；胎座位于果片中部，彼此分离；花序伞形。▽Capsulae 3-5-valvatae vel rarius 2-valvatae; placentae in medio valvarum dispositae disjunctae; inflorescentiae umbellatae.