Fig. 97.—A, Cuckoo-pint. (× ¼.)
In B, the front of the leaf is cut away to show
the rod sp (C). F, female flowers; M, male
flowers; st, undeveloped male flowers.
EXERCISES ON CHAPTER VI.
1. Describe the arrangement of the stamens in the wallflower, the sage, and the primrose.
2. Describe the pistil of the deadnettle, the primrose, and the shepherd’s purse. (1895)
3. In what respects does the flower of the buttercup differ from that of the wild rose?
4. Explain the arrangement and form of the stamens in some flower selected by yourself. Describe the structure and contents of the anther. (1897)
5. Where is the pollen of a flower formed? What is its use? (1898)
6. Name one or two plants which do not ripen seed if insects are excluded, and show why they do not. (1898)