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In some cases, orchids and their pollinators have become so interdependent that their existence is mutually exclusive. [4] Pollination mechanisms resulting from this coevolution generally benefit both parties: pollinators obtain nectar from the flowers, while orchids gain pollen transfer.
Neotropical orchids themselves often exhibit elaborate adaptations involving highly specific placement of pollen packets on the bodies of the male orchid bees; the specificity of their placement ensures that cross-pollination only occurs between orchids of the same species. Different orchid bee males are attracted to different chemicals, so ...
One type of automatic self-pollination occurs in the orchid Ophrys apifera.One of the two pollinia bends itself towards the stigma.. Self-pollination is a form of pollination in which pollen arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms) of the same plant.
Here’s what plants, flowers, trees and shrubs to avoid if you have allergies and preventative steps to take so that you can still enjoy gardening. Here’s what plants, flowers, trees and shrubs ...
Beyond more potent pollen, the sheer quantities of it may be causing a problem. Experts think more exposure to pollen equals more chances to be sensitized, which equals more allergies.
Signs Seasonal Allergies are the Cause of GI Distress. Because an upset stomach isn’t exclusive to seasonal allergies, it can be hard to pinpoint exactly when GI distress is a result of any ...
A pollinium (pl.: pollinia) is a coherent mass of pollen grains in a plant that are the product of only one anther, but are transferred, during pollination, as a single unit. [1] [2] This is regularly seen in plants such as orchids and many species of milkweeds (Asclepiadoideae). Usage of the term differs: in some orchids two masses of pollen ...
Many orchids, including the Ophrys bee orchids, deceive male insects into pseudocopulation in this way, using them to transfer pollen. [23] For instance, the orchid Epipactis helleborine is physiologically and morphologically adapted to attract social wasps as their primary pollinators. Social wasps feed their larvae on insects such as ...