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| 2018* Kirk Lane Park, Boarder wall |
Fern
15 October 2018* Kirk Lane Park, Boarder wall
Fern with narrow oblong fronds, the pinnae more or less equal in length some way up from the base, usually untoothed and blunt. Sori are circular when young.
Polypodium vulgare, the common polypody, is a fern of the Polypodiaceae family. Polypodium vulgare is an allotetraploid species, believed to have arisen by chromosome doubling of a sterile diploid hybrid between two ferns which are not known in Europe.
Polypodium interjectum (Intermediate Polypody) looks very much like Polypodium vulgare (Common Polypody) but is usually larger (longer fronds) which are narrower. It grows on walls like P. vulgare but prefers limestone and other base-rich habitats.
P. interjectum is common throughout England, Wales and Ireland and is more often found in the west than the east. The distribution thins as you go north.
(I.Spot)
Fern with narrow oblong fronds, the pinnae more or less equal in length some way up from the base, usually untoothed and blunt. Sori are circular when young.
Polypodium vulgare, the common polypody, is a fern of the Polypodiaceae family. Polypodium vulgare is an allotetraploid species, believed to have arisen by chromosome doubling of a sterile diploid hybrid between two ferns which are not known in Europe.
Polypodium interjectum (Intermediate Polypody) looks very much like Polypodium vulgare (Common Polypody) but is usually larger (longer fronds) which are narrower. It grows on walls like P. vulgare but prefers limestone and other base-rich habitats.
P. interjectum is common throughout England, Wales and Ireland and is more often found in the west than the east. The distribution thins as you go north.
(I.Spot)
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| 2018* Kirk Lane Park, Boarder wall |
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| 2018* Kirk Lane Park, Boarder wall |
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