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Straminergon stramineum

Posted by
Johan Dierckx (Wijnegem, Belgium) on 7 April 2013 in Plant & Nature and Portfolio.

Straminergon stramineum (NL: Sliertmos / EN: Straw Spear-moss / DE: Strohgelbes Schönmoos / FR: Straminergon stramineum) often grows as scattered stems among other vegetation or forms lax tufts or patches. Shoots are pale green (never reddish) and medium-sized, commonly 2–8 cm long, but sometimes more, and hardly branched. They have a string-like appearance because the leaves are slightly concave and overlap each other (though not always closely). The leaves are broadly or narrowly egg-shaped, about 1 mm wide, with a rounded tip, and have a long, single nerve extending well above mid-leaf, sometimes nearly to the tip. A distinct patch of cells in the basal corners of the leaves does not extend all the way to the nerve; this can be seen with a good hand lens on leaves pulled from the stem. A very useful field character is the occasional presence of rhizoids developing from the back of the leaves near the tip. However, these are not always present. Capsules are rare.

Image: Malle (BE) - 26/03/2013

Canon EOS 7D 1/4 second F/22.0 ISO 200 150 mm

© Johan Dierckx

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Canon EOS 7D
1/4 second
ISO 200
150 mm