[1] This species was originally described as Psorotichia bermudana by US botanist Lincoln Ware Riddle in 1916, from specimens collected in Bermuda.

[1] Stromatella has a crustose thallus, meaning it forms a thin, crust-like growth that spreads across the surface it inhabits.

The thallus is indeterminate, meaning it can grow without a defined shape, and is made up of small, scale-like patches (areolate-squamulose).

Early in development, these reproductive bodies (primordia) are stromatic, meaning they form from a mass of tissue, and contain many coiled, spore-producing structures (ascogonia) at their centre, along with clusters of algal cells near the surface.

[1] The sacs that produce spores (asci) are prototunicate, meaning they have simple walls with a gelatinous layer.