Sarcoidosis is a disease that causes small clusters of inflammation, called granulomas. The granulomas can occur in any area of the body, but are most common in the lungs, lymph nodes, eyes, and skin. The cause of sarcoidosis is unknown.
Many theories have been presented to explain the cause of sarcoidosis. The current opinion is that an environmental agent, possibly a mold or fungi, may cause sarcoidosis in a genetically prone person. So far research has found no mold or fungi as a cause of sarcoidosis. The answer to your question is that there is no evidence for black mold, also called Stachybotrys, as a factor in the cause of sarcoidosis at this time.
Non-infectious hypersensitivity lung diseases, such as farmer's lung, appear similar to sarcoidosis. The cause of this group of lung problems has been found to be due to a number of fungi.