On the other hand, Dr. Hooker informs me that the rule does not hold good in Australia: but if most of the Australian trees are dichogamous, the same result would follow as if they bore flowers with separated sexes.

另一方面， Hooker 博士告诉我这条规则在澳大利亚并不适用：但如果大多数澳大利亚的树木都是两性异性的， 那么结果将与它们开出两性分开的花一样。