In lichenology terms the difference between apothecium and scutellum

is that apothecium is the ascigerous fructification of lichens, forming masses of various shapes while scutellum is a rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.

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.

As nouns the difference between fructification and scutellum

is that fructification is the act of forming or producing fruit; the act of fructifying, or rendering productive of fruit; fecundation while scutellum is any of several shield-shaped structures in insects, grasses etc.

As nouns the difference between lichen and scutellum

is that lichen is any of many symbiotic organisms, being associations of fungi and algae; often found as white or yellow patches on old walls, etc while scutellum is any of several shield-shaped structures in insects, grasses etc.

As nouns the difference between thoracic and scutellum

is that thoracic is (zoology) one of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectoral fins while scutellum is any of several shield-shaped structures in insects, grasses etc.

As an adjective thoracic

is (anatomy) of the thorax.

As nouns the difference between insect and scutellum

is that insect is an arthropod in the class Insecta, characterized by six legs, up to four wings, and a chitinous exoskeleton while scutellum is any of several shield-shaped structures in insects, grasses etc.

In zoology terms the difference between scutum and scutellum

is that scutum is one of the two lower valves of the operculum of a barnacle while scutellum is one of the transverse scales on the tarsi and toes of birds.

As nouns the difference between scutum and scutellum

is that scutum is an oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavy-armed infantry of the Roman army while scutellum is any of several shield-shaped structures in insects, grasses etc.

As a proper noun Scutum

is a small autumn constellation of the northern sky, said to resemble a shield. It lies between the constellations of Aquila, Sagittarius, and the tail of Serpens.

As nouns the difference between postscutellum and scutellum

is that postscutellum is (zoology) the hindmost dorsal piece of a thoracic somite of an insect; the plate behind the scutellum while scutellum is any of several shield-shaped structures in insects, grasses etc.

As nouns the difference between transverse and scutellum

is that transverse is anything that is transverse or athwart while scutellum is any of several shield-shaped structures in insects, grasses etc.

As an adjective transverse

is situated or lying across; side to side, relative to some defined "forward" direction.

As a verb transverse

is to overturn; to change.

As nouns the difference between biography and aretalogy

is that biography is a person's life story, especially one published while aretalogy is a form of sacred biography in which a deity's attributes are listed, in the form of poem or text, in the first person.

As a verb biography

is to write a biography of.