. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 548 Handbook of Nature-Study 5. Describe the pistil. When the lily first opens, how are the stamens placed around the pistil? What happens to the seed-box after the blos- soms have faded? Does the seed-pod float upon the water as did the flower? What sort of stem has the flower? How does this stem hold the seed-pod below the water ? 6. What sort of seed has the water lily? Sketch the seed-pod. How does the seed escape from it ? How is it scattered and planted ? 7. What sort of a root
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 548 Handbook of Nature-Study 5. Describe the pistil. When the lily first opens, how are the stamens placed around the pistil? What happens to the seed-box after the blos- soms have faded? Does the seed-pod float upon the water as did the flower? What sort of stem has the flower? How does this stem hold the seed-pod below the water ? 6. What sort of seed has the water lily? Sketch the seed-pod. How does the seed escape from it ? How is it scattered and planted ? 7. What sort of a root has the water lily? Are there many fine root- lets upon it? Why? How does this rootstock serve the plant aside from getting food? 8. Imagine a water lily set on a dry hillside. Could the stems uphold the flowers or leaves? Is the petiole large enough to hold out such a thick, heavy leaf? Could the root get food from a dry location? Why? g. Judging from what you know of the places where water lilies grow and the condition of the water there, describe the Nile where the lotus grows. Describe the Amazon where the Victoria regia grows. PONDWEED Teacher's Story HE study of any plant which has obvious limitations as to where it may grow should be made a help in the study of geography. Pond- weed is an excellent subject to illus- trate this principle; it grows only in quiet beds of sluggish streams or in ponds, or in the shallow protected portions of lakes. It has tremen- dous powers of stretching up, which render it able to grow at greater depth than one would suppose possi- ble, often flourishing where the water is from ten to twenty feet deep. Often, when the sun is shin- ing, it may be seen like a bed of sea- weed on the bottom. Its roots, like those of most water plants, have less to do with the matter of absorb- ing water and nourishment than do the roots of land plants, one of their chief functions being to anchor the plant fast; they have a firm grip on the bottom; and if pond
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