What modifications do plants have for hudrophily
Answers
Explanation:
Hydrophilous pollination involves the use of water as a vector in the transportation of pollen. Distinctions are drawn between pollen transported above, on and beneath the water surface. Hydrophilous plants are found in a diversity of habitats and phylogenies, and they play a crucial role in coastal habitats. Hydrophilous taxa are the only known plants with 2-dimensional pollination systems.Hydrophily is a fairly uncommon form of pollination whereby pollen is distributed by the flow of waters, particularly in rivers and streams. Hydrophilous species fall into two categories: (i) Those that distribute their pollen to the surface of water. e.g. Vallisneria's male flower or pollen grain are released on the surface of water, which are passively carried away by water currents; some of them eventually reach the female flower (ii) Those that distribute it beneath the surface. e.g. seagrasses in which female flower remain submergered in water and pollen grains are released inside the water.Surface pollination is more frequent,[1] and appears to be a transitional phase between wind pollination and true hydrophily. In these the pollen floats on the surface and reaches the stigmas of the female flowers as in Hydrilla, Callitriche, Ruppia, Zostera, Elodea. In Vallisneria the male flowers become detached and float on the surface of the water; the anthers are thus brought in contact with the stigmas of the female flowers.[1] Surface hydrophily has been observed in several species of Potamogeton as well as some marine species.