Holocarpic Eucarpic A fungus in which the entire thallus is differentiated into a reproductive sporangium when mature. A fungus in which the thallus is differentiated into vegetative and reproductive regions. Whole thallus of fungus becomes converted into a reproductive cell Thallus consists of single reproductive cell attached to substrate hyphae. Example: Chytridiomycota, Plasmodiophoromycota Differentiates into distinct vegetative and reproductive portions. Most of the fungi are eucarpic.