Description:
Thallus very thin, areolate.
Apothecia: immersed in the thallus with only the "ostiole" showing, 0.2(-0.25) mm diam. Disc becoming more exposed in mature apotheica; dark-brown, paler when wet
Spores: simple, braod ellipsoid, thin-walled, 15-17 x 9-10 Ám. Chemistry: Thallus C+ red (in section)

Distribution:
One collection, on siliceous rock, from Mt Usbourne on the Falkland Islands.

Notes: Characterized by the small size of the apothecia and ascospores.

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Apothecia


Apothecium


Apothecium


Thecium


Ascus and Spores