Tui De Roy / Atlantic yellow-nosed albatross (Thalassarche chlororhynchos). nesting amid Blechnum palmiforme tree ferns. Gough Island, Gough and Inaccessible Islands UNESCO World Heritage Site, South Atlantic.
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Ross Hoddinott / Hard fern (Blechnum spicant) frond uncurling, Cornwall, UK. April.
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Kirkendall-Spring / Ama'u fern (Sadleria cyatheoides) growing on the Pu'u O'o Lava Bed, Hawaii Volcanoes National Park, Hawaii. December 2016.
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Kirkendall-Spring / Ama'u fern (Sadleria cyatheoides) is the first plant to return to a lava field, Hawaii Volcanoes National Park, Hawaii. December 2016.
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Chris Mattison / Alpine water fern (Blechnum penna-marina), Patagonia, Chile, South America
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Paul Harcourt Davies / Hard fern ( Blechnum spicant) showing the sori (cluster of spore producing structures. Beneath the fronds. Sugano, Orvieto, Umbria, Italy, March.
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Chris Mattison / Hard fern (Blechnum spicant) infertile fronds, in Beech wood, autumn. Wye Valley, Monmouthshire,UK, November.
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Chris Mattison / Hard fern (Blechnum spicant) infertile fronds, in Beech wood, autumn. Wye Valley, Monmouthshire,UK, November.
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Brent Stephenson / Tall fern (Blechnum magellanicum) growing near the shoreline, and catching the light, Gypsy Cove, Falkland Islands, South Atlantic, January.
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Brent Stephenson / Crown fern (Blechnum discolor) with new unfurling fronds developing, Ulva Island, Stewart Island, New Zealand, November.
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Mark MacEwen / Black and white image of fern (Blechnum durum) Snares Island, New Zealand.
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John Waters / Hard fern (Blechnum sp) growing on mossy scree near Schynige Platte,Bernese Oberland alpine region, Switzerland, October.
