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| habit | typical frond--notice that there is no zigzag in the rachis |
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| the frond segments of this species can also be elongate--do you see how darkly colored the rachis is? It is dark purple, which is exactly what the specific epithet atropurpurea means. | underside of a frond showing the sori (sori are the clusters of sporangia, which produce the spores)--in this species, the sori form a continuous band along the margin of the frond |
