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Like its familiar lookalike P. tenella, this is one of the most characteristic and abundant small foliose lichen species of nutrient-enriched habitats in Ireland. It grows almost equally well on limestone memorials and graveyard headstones as on nutrient-rich tree bark, twigs and branches. It forms patches of scattered plants with inflated, helmet-shaped lobe ends and whiskery hair-like cilia. Soredia (clusters of fungal hyphae and algae) are produced within the swollen lobe ends. Fruiting discs are black and grey-frosted.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Physcia adscendens (Fr.) H.Olivier. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=18926 Accessed on 2016-05-06.