VIRTUAL GALLERY (I)

Early Fossil Record of Sphenopsids and Ferns
1:1		Sphenophyllum foliage.
1:2		Sphenophyllum stem stem in transverse section.
1:3		Bowmanites strobilus of Sphenophyllum.
1:4		Calamophyton
1:5		Calamophyton
The Sphenopsids Living Sphenopsids
1:6		Equisetum giganteum stem showing stereotypical node-iternode arrangement.
1:7		Equisetum strobili.
1:8		Equisetum strobilus in transverse section.
1:9		Equisetum axis in transverse section.
1:10		Equisetum axis in transverse section; close-up on vascular bundles.
Fossil Sphenopsids -- Arborescent Sphenopsids
1:11		Calamites pith cast.
1:12		Calamites stem in transverse section.
1:13		Calamites secondary xylem in transverse section.
1:14		Annularia foliage.
1:15		Asterophyllites foliage.
1:16		Calamostachys strobilus in compression..
1:17		Neocalamites pith cast.
1:18		Equisetites; cast of stem.

The Sphenopsids