As nouns the difference between thallus and scutellum
is that thallus
is (botany) an undifferentiated plant body, such as in algae while scutellum
is any of several shield-shaped structures in insects, grasses etc.
(botany) An undifferentiated plant body, such as in algae.
(botany) Any plant body lacking vascular tissue.
Any of several shield-shaped structures in insects, grasses etc
# (lichenology) A rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.
# (zoology) The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum.
# (zoology) One of the transverse scales on the tarsi and toes of birds.