Polypodiophyta.
Each "thumbnail" image below is linked to a larger photograph.
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Marattia douglasii, pala. Hawaiian endemic eusporangiate fern. Note dehisced eusporangia (synangia - upper right) and an intact synangium (below). | ||||
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Angiopteris evecta, mules foot, Madagascar tree fern. Left, habit; right, view of synangia and spores on lower frond surface. |
