. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. are the stamens and seeds are borne by the pistil as a result of the pollen growthafter reaching the pistil. (Fig. 6.) Other parts of the flower are the more or less leafy growtharound the stamens and pistil. These are the petals and sepals andare not found in all flowers. They may serve to protect the essen-tial parts or to attract METHODS OF POLLINATION 11 Fl
. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. are the stamens and seeds are borne by the pistil as a result of the pollen growthafter reaching the pistil. (Fig. 6.) Other parts of the flower are the more or less leafy growtharound the stamens and pistil. These are the petals and sepals andare not found in all flowers. They may serve to protect the essen-tial parts or to attract METHODS OF POLLINATION 11 Flowers of Several Types.—In some oases the stamens andpistils arc borne in separate flowers, as in the case of Indian com,cucumbers, melons, oaks, walnuts, and many others. These aremonoecious flowers. In other cases the two kinds of flowers are ondifferent plants and are then called dioecious. Familiar examplesare paper mulberry, willow, poplar, and muscadine grapes. Insuch cases only the pistillate plants bear seeds. When stamens and pistils are in the same flowers, the flowersare called perfect. (Fig. 6) We-find perfect flowers in peaches,plums, apples, pears, quinces, and the common bush fruits. Straw-. Fig. 6.—Section of perfect flower showing pistil in center with growth from pollen grainreaching the ovule. Stamens shed the pollen. Petals and sepals serve as protection andsometimes attract insects to carry pollen. berries have perfect flowers in structure but in many varieties thestamens do not develop pollen which will grow on reaching the pis-tils. Such varieties must have others growing near them whichhave good pollen. (Chapter XX). Methods of Pollination.—When flowers have both stamensand pistils they may be self-pollinated and this is very frequentlythe case. But there are very many varieties of orchard fruits inwhich the pollen does not grow well on pistils of the same we get better crops of fruit if several varieties of apples whichblossom at the
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