. First studies in plant life in Australasia, with numerous questions, directions for outdoor work, and drawing and composition exercises. Botany. FRUITS AND SEEDS 145 but these help with their balloons to float away the heavier ripe seeds. But, indeed, none of the seed is heavy; for it would take about 30,000 of them to weigh as much as one broad bean! 6. Trees that have hairy seeds. Among the trees, too, some make use of the balloon of hairs. Look at ripe seeds of the plane tree, or of the willow, or of the oleander, and you will see the hairy seeds ready for a flight. Have you noticed how t
. First studies in plant life in Australasia, with numerous questions, directions for outdoor work, and drawing and composition exercises. Botany. FRUITS AND SEEDS 145 but these help with their balloons to float away the heavier ripe seeds. But, indeed, none of the seed is heavy; for it would take about 30,000 of them to weigh as much as one broad bean! 6. Trees that have hairy seeds. Among the trees, too, some make use of the balloon of hairs. Look at ripe seeds of the plane tree, or of the willow, or of the oleander, and you will see the hairy seeds ready for a flight. Have you noticed how tough the fruit-stalks of the plane tree are, and how tightly they hold on to the tree? Break up one of the fruit balls, and you will find that the seeds are feathered for flight. Now, if the ball fell easily to the ground, the seeds would have little chance of flying. Hence the balls hang on tightly, often through the whole winter, swinging and banging against the wood in every gale, till the seeds are loosened and fly away. 7. Trees that have flat or winged seeds. But the plan most in use among the trees that use the wind as a seed-carrier is that of the flat, light seeds or winged seeds. Even among low plants we find some that have seeds of this kind, as in the flat, light seeds of the Cape love-lily, and in the winged seeds of the parsnip. But most of the seeds of this kind grow high up in the air where the wind has a chance to blow them to a seeds of parsnip, distance The hop is not a tree, but it. Fruit ball of plane tree. The ball is be- ginning to break up to let tlie seeds es- Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gillies, William. Melbourne, Whitcombe & Tombs, Ltd
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Keywords: ., bookcollectionbiodiversity, bookleafnumber158, booksubjectbotany
