Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: continuous, diffuse, effuse [th] upper surface: yellow(ish) white (ivory, off-white, cream-coloured) [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: present [th upper surface] soredia, soralia, soralioid structures: absent [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane ascomata: absent secondary metabolites: present secondary metabolites: hypothamnolic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock, stones, pebbles – unspecified.