Irish lichens

Toninia aromatica
Order: Lecanorales       Family: Bacidiaceae

Species: Toninia aromatica

Growth type squamulose.
Photos: In limestone crack. Black Head, the Burren, W Ireland.
BLS Burren meeting 2009

Thallus greyish, tinged brown or green. Rounded warted squamules with pale spots or ridges near centre. The numerous black compressed apothecia are often faintly pruinose. Asci are 8-spored, the spores 3-septate, 12-23 x 3-6 Ám. Paraphyses have swollen, pigmented apical cells. Microscope photos below.

Fairly common throughout Ireland on soft calcareous rocks and lime mortar. Epithecium green, K-.

Similar: T. sedifolia. Thallus white or glaucous-pruinose.
Epithecium greyish, K+ violet. Spores 1-septate.

Toninia aromatica

Toninia aromatica

Microscope photographs
Toninia aromatica, microscope photo

Toninia aromatica, microscope photo
Toninia aromatica. April 2009 and January 2012

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