Flower such as the "Sarracenia" or lady-slipper orchids, have elaborate designs to ensure pollination while preventing self-pollination. "Anemophilous": flowers use the wind to move pollen from one flower to the next, examples include the grasses, Birch trees, Ragweed and Maples. They have no need to attract pollinators and therefore tend not to grow large blossoms. Whereas the pollen of entomophilous flowers tends to be large-grained, sticky, and rich in protein (another "reward" for pollinators), anemophilous flower pollen is usually small-grained, very light, and of little nutritional value to insects, though it may still be gathered in times of dearth. Honeybees and
Slipper launch Slipper launch A slipper launch is a traditional River Thames pleasure boat normally of wooden construction to seat between 4 and 8 passengers. These popular launches began to be more widely introduced in the 1930s with classical designs from Meakes of Marlow and later from Andrews of Bourne End during the 1950s. The protoytpe, "Merk", however, was built some years earlier, in 1912 by Andrews at Maidenhead. This boat, now in the collection of the National Maritime Museum Cornwall was owned at one time by Arthur Whitten-Brown, famous with John Allcock for the first non-stop transatlantic flight in 1919. Slipper