Monday 25 November 2019

Possible gall on Bryum rhizoids

I'm suspecting this odd structure on the rhizoids of Bryum pseudotriquetrum (or possibly B. pallescens, which I was puzzling over it when I spotted them, so must check the id) might be a gall?  If anyone knows anything about these or what else it might be, I'd be interested to find out.  Collected at Baglan Burrows yesterday, from one of the WTSWW Distichium inclinatum trial management plots.  For ref the diameter of the internal stalked sphere is 25μm and the external surface of the swollen club-shaped structures (several visible in lower image) appeared papillose.

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