The standard way of storing moss specimens — at least that’s taught — is to press them, like most botanical specimens, or to store them, dessicated, in folders like these:
That’s from Ralph Pope’s (2016) Guide,
Pope, Ralph. Mosses, Liverworts, and Hornworts: A Field Guide to Common Bryophytes of the Northeast. Comstock Publishing Associates, a division of Cornell University Press, 2016.
I can understand if people want to make a permanent collection that does not take up a lot of space, or even send them by post to colleagues.
I’ve found it better to take a specimen from each locale and store them in containers like these:
and of course logging them in a sturdy (not spiral bound!) notebook:
I prefer Leuchtturm1917 hardcover notebooks that are ruled and medium-sized:
In fact, I use these Leuchtturm1917s for all my notes. No, I don’t rely exclusively upon digitized notes. For one thing, it’s difficult to sketch there. And it’s difficult to do things like this:
although if I was being completely thorough, I would log the Google photos identifiers into the paper notebook.
I rely upon an outbound spreadsheet in .ods format for that, with a copy stored on my Parzen Dell Precision workstation and in my Google Drive.
I don’t intend to keep these specimens for decades. If I did, I might opt for the Pope-style folders.
Then they go back into their tea boxes, where I group them by banding with elastics.
Mosses tend to be tough, so this treatment doesn’t bother them. It hasn’t happened to any specimen yet, but I imagine if a fungus grew in the vials, that might do them in and spoil them. I don’t put a lot of water in.