VIRTUAL GALLERY (I)

Ginkgo
1:1		Extant Ginkgo biloba branch showing leaves born on short shoots off the long shoots.
1:2		Extant Ginkgo biloba paired ovules born on the short shoots.
1:3		Extant Ginkgo biloba maturing ovule: earliest stage.
1:4		Extant Ginkgo biloba maturing ovule: second stage. Note pollen chamber
1:5		Extant Ginkgo biloba maturing ovule: third stage. Note differentiation of integument and formation of the megagametophyte (why can't you see it?) inside the megasporangium (nucellus).
1:6		Extant Ginkgo biloba maturing ovule: mature stage. Note micropyle. Where do you expect to find the archegonia?
1:7		Extant Ginkgo biloba microsporangiate strobilus. To each lateral appendage are attached two to four pendant microsporangia.
1:8		Ginkgo leaf from the Miocene of Oregon.
1:9		Sphenobaeira highly dissected leaves. From the Triassic of South Africa.