The entire rear end of my Asterella californica specimen has shrivelled into a blackish mess! This is not surprising. I absentmindedly let the thing dry out a few days ago because I was tired. And (if my sources are correct) only the front end of an Asterella specimen is naturally supposed to survive drought. It probably has something to do with internal resource optimization or something.
The mosses were none the worse for wear though. They folded up when it was dry and then unfurled after rehydration without suffering visible damage.
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