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Figure 18

Abaxial view of a Tsuga mertensiana seed showing integument edges extending around seed margins, joining at the micropylar end to form a small "pocket". In this view, the circular structure near the upper edge of the seed is a large resin vesicle.

Figure 18

Figure 18. Abaxial view of a Tsuga mertensiana seed showing integument edges extending around seed margins, joining at the micropylar end to form a small "pocket". In this view, the circular structure near the upper edge of the seed is a large resin vesicle.