A: | The flowers of Vallisneria are colourful and produce nectar. |
B: | The flowers of waterlily are not pollinated by water. |
C: | In most of water-pollinated species, the pollen grains are protected from wetting. |
D: | Pollen grains of some hydrophytes are long and ribbon like. |
E: | In some hydrophytes, the pollen grains are carried passively inside water. |
1. | Water pollinated flowers showing stamens with mucilaginous covering. |
2. | Cleistogamous flowers showing autogamy. |
3. | Compact inflorescence showing complete autogamy. |
4. | Wind pollinated plant inflorescence showing flowers with well exposed stamens. |
1. | Nucellus | 2. | Integument |
3. | Chalaza | 4. | Hilum |
1. | Amensalism | 2. | Anemophily |
3. | Floral reward | 4. | Commensalism |
1. | To protect seeds | 2. | To attract insects |
3. | To trap pollen grains | 4. | To disperse pollen grains |
1. | Synergids, antipodals and Polar nuclei |
2. | Synergids, Primary endosperm nucleus and zygote |
3. | Antipodals, synergids, and primary endosperm nucleus |
4. | Synergids, Zygote and Primary endosperm nucleus |
1. | wind pollinated plants | 2. | insect pollinated plants |
3. | bird pollinated plants | 4. | bat pollinated plants |