Chapter Outline

Phylum Magnoliophyta— The Flowering Plants Development of Gametophytes Pollination

Fertilization and Development of the Seed Apomixis and Parthenocarpy Trends of Specialization and

Classification in Flowering Plants

Pollination Ecology Herbaria and Plant Preservation Methods

A Word of Caution to Collectors Summary

Pollination Ecology Herbaria and Plant Preservation Methods

A Word of Caution to Collectors Summary

This chapter begins with a probe of the differences between angiosperms and gymnosperms and then discusses the origin of flowering plants. The exceptional diversity of the flowering plants is reviewed next, and the chapter continues with a description of the parallel development of the gametophytes in the anthers and ovules. This leads up to pollination, followed by some details of fertilization and the development of a seed. A discussion of trends of specialization and classification in flowering plants is followed by a section on pollination ecology. Plant preservation, including simple herbarium techniques and practice, is next. The chapter closes with a brief survey on the uses of herbaria and a word of caution to plant collectors concerning unnecessary depletion of native floras.

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