Marchantia’s thallus shows two layers of differentiation: one is the upper photosynthetic layer, which has pores and well-defined epidermis. The lower storage layer is less defined. Gemmae are tiny tissue packets that can be used for asexual reproduction. The thallus is made up of small cups-like structures known as gemma cups. The combination of the barrel-shaped pores and circular shape of gemma cups is indicative of the genus. The ventral surface of thallus contains multicellular purple-colored scales with single-cell thickness and unicellular Rhizoids.