"So it does," replied Miss Harson--"or, rather, to the bean family, of which the pea is a member, on account of its blossoms; but the acacia, like many others, is a brother, or sister, on account of its leaves as well as its blossoms. The peculiar distinction of this family is that its flowers are butterfly-shaped or its fruit in pods, and it often possesses both these characters. By one or the other all the plants of the family are known, and the butterfly-shaped flowers are of a character not to be mistaken, as they are found in no other family. It includes herbs, shrubs and trees--an immense and perfectly natural family, distributed throughout almost every part of the globe. There are at present in all not less than thirty-seven hundred species. So you see that the locust tree is certainly rich in relations."