Thursday, June 24, 2021

Orchids and Their Pollination

The meadows here in Hampshire are full of Common Spotted Orchids often with some Pyramidal Orchids. As with many other flowers, they rely on insects for pollination but they have a trick to try and ensure that this is more successful. They hold their pollen in aggregates called pollinia connected to elongate stipes. These are attached to the flower by a sticky viscidium. When certaininsects such as Bees visit the flower they stick to the head or tongue and are then trnasported to the next flower it visits. The club-shaped pollinia are clearly visible in the photos or the Red-Tailed Bumble Bee.


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