Irish lichens

Toninia sedifolia

Order: Lecanorales       Family: Bacidiaceae

Species: Toninia sedifolia

Growth type squamulose.
Photos: On earth among rocks. Barley Cove, Cork, SW Ireland.

Very variable. Squamules +/- rounded or irregularly-lobed, olive-green to brownish with dense white or bluish pruina. Large black flat or angular discs, pruinose when young, margins becoming excluded. The epithecium is greyish, K+ violet. The asci are 8-spored, spores are 1-septate, 14-25 x 2.5-5 Ám. Microscope photograph below.

Occurs on calcareous soil and dunes, on short calcareous turf and in crevices in calcareous rocks.

Similar: Toninia aromatica. Epithecium green, spores 3-septate.


Toninia sedifolia


Toninia sedifolia

Microscope photograph
Toninia sedifolia, microscope photo


Toninia sedifolia, microscope photo
Toninia sedifolia. Barley Cove, Co. Cork. June 2009

Please contact me if you find errors. All images used are copyright.