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Figure 17

Abaxial view of a Tsuga heterophylla seed showing integument edges extending around seed margins, joining at the micropylar end to form a small "pocket". In this view the lower integument edge extends around the seed to form a flap. The oval structure near the seed centre is a large resin vesicle.

Figure 17

Figure 17. Abaxial view of a Tsuga heterophylla seed showing integument edges extending around seed margins, joining at the micropylar end to form a small "pocket". In this view the lower integument edge extends around the seed to form a flap. The oval structure near the seed centre is a large resin vesicle.