Little money trees Large fungi, such as shiitake mushrooms (Lentinus edodes) and reishi mushrooms (Ganoderma lucidum), in fact account for less than a fifth of the fungi. Most are invisible micro-organisms, such as the familiar molds, yeasts and "red yeast" (actually a mold, Monascus spp.).
香菇、靈芝等大型菇蕈，其實只佔真菌的五分之一，大部分真菌都是肉眼不見的微生物，人們熟知的霉菌、酵母菌與紅麴，都是其中成員。