#spore sac

• Ascus — A microscopic, sac-like reproductive cell characteristic of fungi belonging to the Ascomycetes class, inside of which endogenous spores called ascospores are formed (typically eight) following a sexual process. This structural feature plays an essential role in fungal taxonomic classification and biological dispersal.
• Asci — The plural form of the noun 'ascus'; microscopic reproductive cells specific to fungi of the class Ascomycetes, having the appearance of elongated sacs or tubes. Inside these cellular structures, following the process of meiosis followed by mitosis, ascospores (usually eight) are formed, ensuring the dissemination and perpetuation of the species in the environment.