Final answer:
Phylum Hepatophyta, or liverworts, have a diverse range of forms that can be observed under a microscope. They can be lobate or leafy, with lobate liverworts having a flat thallus and leafy liverworts having tiny leaf-like structures attached to a stalk. Marchantia is an example of a lobate liverwort with a complex thalloid structure.
Step-by-step explanation:
Phylum Hepatophyta, also known as liverworts, can be observed under a microscope and have a diverse range of forms. They can be categorized into lobate liverworts and leafy liverworts. Lobate liverworts have a flat thallus with lobes that resemble the lobes of the liver. Leafy liverworts have tiny leaf-like structures attached to a stalk. Marchantia, a type of lobate liverwort, has a complex thalloid structure with a flattened body and multiple layers of cells. The top layer has open pores, there is a chlorophyll-containing layer, and a layer without chlorophyll. The lower skin has fish-scale-like structures and rhizoids that help attach the liverwort to a substrate.