👉 The term "cecidium" is not commonly used or recognized in English. It could be a name, abbreviation, or something else entirely. Could you please provide more context or clarify your question?
👉 Cecidium is a genus of fungi in the class Ascomycota, commonly found in soil and aquatic environments. It contains two species that are known for their ability to produce a black coloration on the surface of their spores when they mature. These spores can then be collected and used for scientific research or medicinal purposes.