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Definition
| plant embryo and a food supply encased in a protective covering |
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Definition
| group of seed plants that bear their seeds directly on the scales of cones |
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Definition
| group of seed plants that bear their seeds within a layer of tissue that protects the seed; also called flowering plant |
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Definition
| structure that contains the entire male gametophyte in seed plants |
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Definition
| transfer of pollen from the male reproductive structure to the female reproductive structure |
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Definition
| tough covering that surrounds and protects the plant embryo and keeps the contents of the seed from drying out |
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Definition
| structure in seed cones in which the female gametophytes develop |
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Definition
| structure in a plant that contains two haploid sperm nuclei |
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