70 



POLLINATION 



some have been known to be carried more than 100 miles. Since 

 everything in the neighborliood of the forest is covered with pollen 

 some of the grains inevitably come in contact with the ovnles in the 

 pistillate cones and this constitutes pollination. 



Two other important groups of plants that are anemo])hilous are 

 the grasses and sedges. The majority of the grasses are monoclinous 

 and self-pollination is often, though not always, prevented by 



Fig. 27.— Red pine {Pinus resinosa). Ovulate cones. Wind pollinated. 

 (From The Flower and the Bee, by John H. Lovell; copyright, 1918, by Charles 

 Scribner's Sons. By permission of author and publisher.) 



dichogamy. Some, however, such as Indian corn, are diclinous and 

 monoecious or, in a few cases, dioecious. Some of the sedges are 

 monoclinous also, but probably a greater number are diclinous. 

 Most of the diclinous species are monoecious but a few are dioecious. 

 Many of the grasses bloom early in the morning, at sunrise or a little 

 later, and it is an interesting phenomenon to watch. The bracts 



