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U.S. Botanic Garden Conservatory Nestled in the heart of Capitol Hill and nearly as old as Washington, D.C., itself, the U.S. Botanic Garden is the Nation's Garden. Karen's work for the Garden highlights plant life, reproduction and physical structures.
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Fern gametophyte and sporophyte © by Karen Carr
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Fern male and female gametophyte © by Karen Carr
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Pine cone pollen, scale © by Karen Carr
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Pine cone, ovule, egg, pollen tube and seed © by Karen Carr
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Plant reproductive structures: pollen tube, ovule, stigma © by Karen Carr
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Plant reproductive structures: stamen and pistil © by Karen Carr
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Plant veins, stomata and chloroplasts © by Karen Carr
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US Botanic Garden Conservatory fern reproductive system © by Karen Carr
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US Botanic Garden Conservatory xylem and phloem © by Karen Carr
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US Botanic Garden Oak Tree Community © by Karen Carr
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