We do not know that even the most prolific area is fully stocked with specific forms: at the Cape of Good Hope and in Australia, which support such an astonishing number of species, many European plants have become naturalised.

我们不知道即使是最多产的地区也充满了特定的形式：在好望角和澳大利亚，支持如此惊人数量的物种， 许多欧洲植物已经归化。