This group is known by the name Syngenesia, and includes all plants with compound flowers, like the daisy and sunflower, of the N.O. Compositae. It is the largest order in the world, and the British genera number about 50. They may be divided into three sections. § 1. Those whose flowers are all tubular, as in the thistles, burdock, saw-wort and knapweed. § 2. Those whose flowers are all strap-shaped, as chicory, goatsbeard, and dandelion. § 3. Those with tubular flowers (disk) surrounded by strap-shaped forms (ray), as daisy, chrysanthemum, aster, ragwort, and golden rod. The flowers are usually showy, and vary in colour from pure white to pink, red, purple, and blue on the one hand, and green, yellow, orange on the other. Frequently the ray is of one colour and the disk of another, as in the daisy and chrysanthemum. A most pleasing group. The teasel (10), scabious (11), phyteuma (56), and jasione (57) have flower-heads somewhat like a composite. (See Fig. 19.)

Fig. 23.   Gentian.

Fig. 23. - Gentian.

Fig. 24.   Clover and Vetch: Legumes (see Group xv).

Fig. 24. - Clover and Vetch: Legumes (see Group xv).

Fig. 25.   Herb Bennet.

Fig. 25. - Herb Bennet.

Fig. 20.   Snowberry.

Fig. 20. - Snowberry.