© Graham Day
© Paul Hackney
Map updated: March 2008
:: Flora of Northern Ireland ::
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| Hymenophyllum wilsonii | Hymenophyllaceae | Wilson's Filmy Fern |
| Click on the thumbnails to enlarge the images | |||
© Graham Day |
© Paul Hackney |
Map updated: March 2008 |
|
| Species Description: |
| This is a small plant which superficially resembles a tuft of moss rather than a fern. The individual leaves are very thin and transparent, and divided into parallel-sided, toothed segments. The sporangia are produced singly inside a two-lipped structure called the indusium at the ends of the leaf-segments. This indusium is untoothed in Wilson's Filmy-fern, but toothed in the much rarer, but otherwise similar, Tunbridge Filmy-fern. The plant is frequent in damp shaded rock crevices such as in block scree in the Mourne Mountains. |
| All names: Hymenophyllum wilsonii Hook.; Hymenophyllum peltatum auct.; Hymenophyllum unilaterale auct. |
| © National Museums Northern Ireland, 2000-2009 |