Comb Tooth (Hericium americanum)
This species of comb tooth (Hericium americanum, formerly called H. coralloides) is closely related to the comb tooth known today as H. coralloides (which itself was formerly known as H. ramosum). Both comb tooths (comb teeth?) grow on dead wood or live trees, and both are branched, but H. americanum has long spines (not short). There will be a quiz on this at the end of the class period!