Sparria

S. caboverdensis S. cerebriformis S. endlicheri Sparria is a small genus of lichen-forming fungi in the family Opegraphaceae.

[1][2] The genus was circumscribed in 2011 by the lichenologists Damien Ertz and Anders Tehler, with Sparria cerebriformis assigned as the type species.

The thallus, or lichen body, is typically thick and can vary in texture from smooth and continuous to cracked (rimose) or wart-like (verrucose), and it may sometimes appear as raised, bubble-like structures (bullate).

The hymenial disc, where the spores develop, is narrow and typically coated with a white, powdery substance known as pruina.

These spores are somewhat muriform, meaning they have several transverse and longitudinal divisions, and are encased in a distinct gelatinous sheath.