Thallus

(redirected from thalluses)
Also found in: Dictionary, Thesaurus, Medical.

thallus

[′thal·əs]
(botany)
A plant body that is not differentiated into special tissue systems or organs and may vary from a single cell to a complex, branching multicellular structure.

Thallus

 

the body of lower plants (algae, fungi, myxomycetes, lichens). A thallus is not differentiated into stem and leaves. Thalli are characteristic of thallophytes.