Lecidella elaeochroma
Crustose lichen
Lecidella elaeochroma, Crustose lichen. A common lichen in less air polluted areas, living on smooth bark on deciduous trees, particularly twigs. Often forming mosaics with another crustose lichen, Lecanora chlarotera. Thallus bounded by a thick, black, prothallus. Apothecia black.
Photograph detail
Slide 1: Lecidella elaeochroma, Crustose lichen. Mosaic, with Lecanora chlarotera, on fallen Ash branch, Fraxinus excelsior. Showing black apothecia and bounding prothallus. Wood End, Redmire. April.
Slide 2: Lecidella elaeochroma, Crustose lichen. Mosaic, with Lecanora chlarotera, on fallen Ash branch, Fraxinus excelsior. Showing black apothecia and bounding prothallus. Wood End, Redmire. April.
Slide 3: Lecidella elaeochroma, Crustose lichen. Apothecia. On fallen Ash branch, Fraxinus excelsior. Wood End, Redmire. April.
Slide 4: Lecidella elaeochroma, Crustose lichen. Apothecia section showing asci with spores. Photographed at x1000, oil immersion, brightfield illumination. Collected from fallen Ash branch, Fraxinus excelsior. Wood End, Redmire. April.
Slide 5: Lecidella elaeochroma, Crustose lichen. Mosaic, with Lecanora chlarotera, on fallen Ash branch, Fraxinus excelsior. Showing black apothecia and bounding prothallus. Wood End, Redmire. April.