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Figure 15

Four Pseudotsuga menziesii seeds. A - intact seed, adaxial view. B - seed with wing broken off, adaxial view. C - intact seed, abaxial view, showing integument edges. D - seed with wing broken off, abaxial view. B and D would be "pure seed" according to PSD 51.

Figure 15

Figure 15. Four Pseudotsuga menziesii seeds. A - intact seed, adaxial view. B - seed with wing broken off, adaxial view. C - intact seed, abaxial view, showing integument edges. D - seed with wing broken off, abaxial view. B and D would be "pure seed" according to PSD 51.