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Plate IX.
33. Common Brake, Eagle Fern. Pteris aguilina. 2 to 3 ft. high; stem upright; fruit on curled margin of leaves.
34. Oak Fern. Phegopteris dryopteris. 1 ft.
35. Moonwort. Botrychium lunarioides. 3 to 12 in.; leaf-stem from the ground.
36. Botrychium virginicum. 1 to 2 ft.; leaf from middle of fertile stem.
