Irish lichens

Gomphillus calycioides

Order: Ostropales       Family: Gomphillaceae

Species: Gomphillus calycioides

Growth type crustose.
Photos: Over moss on Oak. Glengarriff, Co. Cork, SW Ireland.

Thin greenish-grey or +/- colourless thallus with scattered blackish-brown apothecia that appear to have short, +/- furrowed stalks. Apothecia are either single or 2-6 per stalk.
Asci are very long and narrow, 280-350 x 7-10 Ám, 8-spored.
Multi-septate (usually 25-65 -septate), colourless, threadlike spores, 160-200 x 1.5-2 Ám. Micro photos below.
Chemical reactions negative.

Occurs overgrowing moss and liverworts on mossy rocks or tree trunks in sheltered, humid locations but occasionally found on soil. Most frequent in western Ireland.


Gomphillus calycioides


Gomphillus calycioides

Microscope photographs
Gomphillus calycioides, microscope photo


Gomphillus calycioides, ascus


Gomphillus calycioides, paraphyses
Gomphillus calycioides. November 2009

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