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7 Pollen cone with many juvenile microsporophylls

6 Pollen cone at initiation of microsporophylls

3 Ovulate cone at apical growth of macrosporophylls

4 Ovulate cone just before ovule initiation

1 Vegetative shoot apex

2 Ovulate cone at initiation of macrosporophylls

1: Leaf primordia at various developmental stages. This shoot apex is 2 mm in height.
2,3:Macrosporophylls are regularly arranged.
5:Outline of juvenile sporophylls are similar to that of mature ones.
7:Pollen cone is directly transformed from vegetative shoot apex. New vegetative shoot apex forms at the axil of a leaf.
8:Apex of ovulate cone is directly transformed into a vegetative shoot apex, which, in turn, eventually develops into an ovulate cone.

Scales:1 division = 1 mm,

Notes

5 Ovule primordia on macrosporophylls

8 Vegetative shoot apex surrounded by seed bearing spoorphylls

Shoot apex
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