rinodina lichen

Rinodina colobina is a species of corticolous (bark-dwelling) crustose lichen in the family Physciaceae. It has a dark grey, granular appearance and typically grows on nutrient-rich bark of deciduous trees, including elm, maple, and oak. The lichen is characterised by small black reproductive structures (apothecia) surrounded by a grey margin. It is widely distributed across Europe and North America, favouring areas with consistently high humidity levels.

Rinodina colobina typically grows as an epiphyte, primarily on the bark of trees (corticolous). It prefers nutrient-rich or eutrophic bark, particularly that of deciduous trees, although it occasionally colonises wood or lignin substrates. Its most common host trees include species of elm (Ulmus), poplar (Populus), maple (Acer), ash (Fraxinus), and oak (Quercus). In Greece, it can use Melia...