thalloid
/ˈθælɒɪd/Definitions
1. adjective
Having or consisting of a thallus (a flat or plate-like body part in fungi and some algae).
“The thalloid structure of the algae in the pond allowed them to photosynthesize efficiently.”
2. noun
A type of non-vascular plant body, especially one without true leaves or stems.
“The thalloid plant had adapted to the dry climate by developing a waxy coating on its surface.”