ascomycetes

Ascomycetes is a fungus whose spores develop within asci. The ascomycetes include most molds, mildews, and yeasts, the fungal component of most lichens, and a few large forms such as morels and truffles.

"Wow, we can sell these ascomycetes for twelve bucks each!" "Jason, can't you just say truffle. Knowing this vocabulary doesn't make you a better mycologist, it just makes you a prig."