which is called the pericarpium; 6th, the receptacle, and the seed.

Q. What is the use of the calyx? A. To hold the flower.

Q. Is there a calyx to every flower? A. No.

Q. Which do you call the corolla? A. The corolla is found inside or above the calyx.

Q. When the corolla is divided, what are the parts called? A. They are called petals.

Q. When there is only one row of petals, what do you call the flower? A. A single flower, and when there are more rows than one, a double flower.

Q. Where do the stamens grow? A: Inside the corolla. Q. What are they like? A. They are like slender threads with little knobs on their points.

Q. Where do the pistils grow? A. In the centre of the stamens; there is sometimes one, and sometimes more.

Q. Which is the receptacle? A. The receptacle is that part in which all the other parts are united.

Q. In what class does a flower belong that has only one stamen? A. The class monandria; and those with two, diandria; with three, triandria; with four, tetrandria; with five, pentandria; with six, hexandria; with seven, heptandria; with eight, octandria; with nine, enneandria; with ten, decandria; with twelve, dodecandria; with twenty, icosandria; with many stamens, polyandria.

Q. You have told me the classes, now tell me the orders. Do you find to what order a flower belongs by the number of stamens ? A. No; by the number of pistils.

Q. Of what order are those flowers with only one pistil? A. The order monogynia; those with two, digynia, &c. &c.

Q. Then to what class does it belong? A. To the class pentandria.

Q. What does the word pentandria mean? A. The word pentandria means five stamens, pent meaning five, and andria meaning stamens.

Q. As we have found to what class the Polyanthus belongs, we must now find the order; how many pistils has it? A. Only one.

Q. Of what order is a flower with one pistil? A. The order monogynia; because mono, means one.

So the Polyanthus is of the class pentandria, and the order monogynia.

THE TULIP.

Q. To what class does the Tulip belong? A. To the class hexandria.

Q. How do you know? A. By counting its stamens. Q. How many stamens are there? A. Six stamens and one pistil.

Q. Then if it has one pistil, to what order does it belong? A. To the order monogynia.

THE COMMON PASSION FLOWER.

Q. Do you know the class and order of this flower? A. It belongs to the class pentandria, and order trigynia. Q. How do you know that it is of the order trigynia? A. By its having three pistils.

Q. And how can you tell the class? A. By the number of stamens.

Q. How many stamens has the passion flower? A. Five. Q. Can you tell me why it is called a "passion flower"? A. Because it is said to resemble the passion of Christ.

Q. In what manner does it resemble our Saviour's passion? A. The three pistils are said to resemble the three nails with which he was nailed to the cross; the five stamens, the five wounds; and the radiant purple colour, the