Wednesday, 14 November 2018

Kerbstone query

One query from last week's Vale outing was this small, spidery-looking acrocarp found on a shaded roadside kerbstone near Llysworney. Longest leaves are 1.5mm long. It was probably growing on a thin layer of soil, so Didymodon umbrosus might be a possibility - but would this have such incrassate cells? Selection of microscope pics below; any thoughts welcome.
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3 comments:

  1. Barry Stewart16 November 2018 at 14:41

    It resembles a Didymodon and there aren't too many with plane leaf margins. I would suggest investigating the characters of sinuous to start with?

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  2. GMT18 November 2018 at 21:37

    Thanks Barry. That was my first thought and there was some sinuosus nearby, but this was smaller and didn't have any leaves with missing tips - also the tips were less irregular than on the sinuosus samples I've examined.

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  3. GMT14 December 2018 at 18:48

    I sent the sample to Tom Blockeel and he determined it as sinuosus - good call Barry!

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