| Single frond. West Scotland, early July |
 | Individual fronds, immature. Cultivated material, June |
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| Mid section of mature frond. West Scotland, early July |
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Pinnules. West Scotland, early July |
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| Part of immature frond. Hampshire, early July |
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Lower section of immature frond showing scales. Cultivated material, June |
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| Pinna with immature sori. Hampshire, early July |
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Pinnae showing sori: mature (below) and with dehisced sporangia, ie having shed their spores (above). Cultivated material, September |
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| Pinnules with immature sori. Hampshire, early July |
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Pinnules with immature sori. West Scotland, early July |
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| Pinnules with immature sori. Hampshire, early July |
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Pinnules with mature sori. Cultivated material, September |
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| Mature sori showing sporangia. Cultivated material, September |
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Pinnules showing sori with dehisced sporangia. Cultivated material, September |
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| Cumbria, early July |
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West Scotland, early July |
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| Cumbria, late July |
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Cumbria, early July |
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| West Scotland, early July |
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Cumbria, late July |
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| West Scotland, early August |
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West Scotland, early August |
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| West Scotland, early August |
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Fellside, with Pteridium aquilinum (Bracken) and Dryopteris affinis ssp. cambrensis (Narrow Scaly Male Fern). Cumbria, early July |
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