http://da4hvbumi2ti2izn5hhu3xts3zkdkxvviqdn67zohbqqxyhctylvx7ad.onion/r9k
I find those organisms to be fascinating, especially how to they tend to find a little niche to thrive in.
Currently I'm collecting one specimen of every new mushroom I find, I take a spore print, I try to determine the species (using 2, 3 books and an online mushroom identifier to cross reference), then I dry them and put them in a small mason jar, with their spore print.