Let's set aside the familiar button, cremini, and portabella mushrooms (all in the same species of Agaricus mushrooms) and focus on a different and growing segment of the mushroom industry: specialty mushrooms. The USDA defines "specialty mushrooms" as any non-Agaricus mushroom, which includes Shiitake, Oyster, Lion's Mane, and many more.  

Specialty mushroom production benefits include new income sources, crop diversification, utilization of unused space or waste streams, and building soil health. These mushrooms are grown in a variety of low-cost ways in outdoor, indoor, and hybrid systems including on logs, in the ground, in raised beds, or in blocks contained in buckets or plastic bags.