This Powerpoint reduction is designed to give you first-hand experience with histology slides of the gymnosperms: cycads and Ginkgo.

Zamia cone axis cross section

Cycas microsporophyll cross section

changing orientation of slide...

Zamia archegonium longitudinal section

Ginkgo microsporangiate strobilus longitudinal section

Ginkgo free-nuclear ovule longitudinal section

Ginkgo embryo longitudinal section

This page © Ross E. Koning 1994.

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