"More mushroom" can be described with a variety of synonyms. These terms include "extra fungi," "additional shrooms," "added mushrooms," and "supplementary mycelium." Other potential descriptors might include "increased agaric," "enhanced toadstool," or "augmented fungus." Ultimately, the choice of synonym will depend on the specific context, as well as the desired tone or level of formality. However, all of these choices convey the same basic meaning, indicating a desire or need for an additional quantity of the edible or medicinal fungi known as mushrooms.