Black Pearl mushrooms is an amazing cross blend of two other mushroom species. A hybrid from Japan originally. The black pearl crosses the best characteristics of the king oyster and the Pearl Oyster. Black Pearls have large meaty stalks like a King Oyster that can be cut up like scallops. The flesh is tender and goes great with stir fry dishes. Some studies show that these mushrooms can provide anti-inflammatory and anti-tumor properties and have high levels of antioxidants.