Leucoagaricus leucothites
Leucoagaricus leucothites was formerly called Leucoagaricus naucinus and with the state of flux in taxonomy at present, it might have another name next year. It is a mushroom of worldwide distribution, widely known as an edible species but often recommended as a species to be avoided because it shares so many features with a couple of deadly Amanitas. For this reason nobody should attempt to eat these unless they are completely confident in being able to distinguish an Amanita.
I spotted the specimens above by the side of the road, which is a common place to find them. The caps are bright white with a satin texture. The shape of the large specimen in the picture is characteristic of this species. The underside features a hollow stem that widens a little at the base, but does not have a sac or volva like Amanita or Volvopluteus. The gills are at first white but darken a little at maturity. The spore print is bright white.
It is always a little scary eating something new but even more so when it is something with white gills and a white spore print. Nevertheless, after much checking and re-checking I fried some up and did a taste test. From descriptions elsewhere I had expected something more; it tasted just like Volvopluteus gloiocephalus. The mature specimen even looks a little like Volvopluteus.
One can only wonder how species like this manage to spread so far and wide. Apparently the spores of this one germinate very readily in a wide range of media so perhaps that has something to do with it. Anyway, another of our introduced species that is edible for what it is worth.
July 2022
This mushroom has had a few different names. One is Lepiota naucina. It was described as an edible species way back in 1901 in an excellent book by American Professor of Botany, George Francis Atkinson, called “Studies of American Fungi, Mushrooms, Edible, Poisonous etc.” available on Project Gutenberg.
