"Hydnum repandum"
2020: Steve Russell has examined 12 collections of hedgehog
mushrooms from Indiana and says, "We currently only have
confirmation of three species of Hydnum (Hedgehog Mushrooms)
from the state.
Hydnum aerostatisporum, Hydnum cuspidatum,
Hydnum subolympicum. All three names are unlikely to be in
any of your field guides, as they were all recently described."
Six new species and reports of
Hydnum (Cantharellales)

from eastern North America (A
PDF document will download.)