Mosses
Pretty hopeless for me, but here is some information if I get the chance to devote time to them
Grout's text on Mosses - on the older side but apparently still used. I worry that perhaps the taxonomic tree has changed since then.
https://archive.org/details/mosseswithhandle00grou_0/page/n15/mode/2up
There is a book "Outstanding Mosses and Liverworts of Pennsylvania and nearby States" By Susan Munch
This looks good because only a hand lens is needed - no microscope.
https://www.goodreads.com/book/show/2157875.Outstanding_Mosses_Liverworts_of_Pennsylvania_Nearby_States
also
Common Mosses of the Northeast and Appalachians
By McKnight - also doesn't require a microscope
https://www.goodreads.com/book/show/17028276-common-mosses-of-the-northeast-and-appalachians
