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		No cover image available Ferns of Minnesota [electronic resource] / Rolla Tryon ; ill. by Wilma Monserud. by Tryon, Rolla Milton, 1916- \| ProQuest (Firm). Edition: 2d ed., rev.Material type: Text; Format: electronic available online ; Literary form: Not fiction Publication details: Minneapolis : University of Minnesota Press, c1980Other title: Ferns and fern allies of Minnesota.Online access: Click to View Availability: No items available. Add to cart (remove)
		Spores of the Pteridophyta : surface, wall structure, and diversity based on electron microscope studies / Alice F. Tryon, Bernard Lugardon. by Tryon, Alice F [author.] \| Lugardon, Bernard [author.]. Material type: Text; Format: available online ; Literary form: Not fiction Publisher: New York : Springer-Verlag, 1991Copyright date: 1991Online access: Click to View Availability: No items available. Add to cart (remove)
		Spores of the Pteridophyta : surface, wall structure, and diversity based on electron microscope studies / Alice F. Tryon, Bernard Lugardon. by Tryon, Alice F [author.] \| Lugardon, Bernard [author.]. Material type: Text; Format: available online ; Literary form: Not fiction Publisher: New York : Springer-Verlag, 1991Copyright date: 1991Online access: Click to View Availability: No items available. Add to cart (remove)

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