© Rich Barclay
© Rich Barclay

Open-top chambers and CO2 tanks against control shed

© Rich Barclay
© Rich Barclay

All 15 trees are male. The pollen organs and freshly growing leaves come out at about the same time.

© Rich Barclay
© Rich Barclay

Looking downward on a Ginkgo tree - the plant distributes its leaves to maximize light capture.

© Rich Barclay
© Rich Barclay

Open-top chambers and CO2 tanks against control shed

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