Lichens on Langcliffe Cobbles by War Memorial Fountain -

Lecanora campestris often found on sandstone slabs at ground level - found on the kerb and cobbles at Langcliffe Fountain. (Identifying features: The edge of the thallus is white and the very edge is fimbriate (looks frayed). The dark brown discs have a pale "Jam-tart" rim.

-
One day whilst recording Fern-Grass (Catapodium rigidum) in what may be the only place it still survives near Settle - on the cobbles at Langcliffe  Fountain..

Langcliffe War Memorial

Fern-Grass:  Catapodium rigidum

I decided to record the lichens too.

All the lichens presented here are very common ones - so it would be worth your while learning them.

Circinarea contorta subsp contorta   - grows on limestone and on concrete

Circinarea contorta subsp contorta   - grows on limestone and on concrete. There is one apothecium (fruiting body) per areole, (Little island) and each areole is roundish and many are separated from each other.

Circinarea contorta subsp contorta   - grows on limestone and on concrete

Getting Low

Verrucaria nigrescens. This likes a base rich substrate such as limestone.

Protoblastenia rupestis - Langcliffe cobbles. It likes concrete and limestone.

Cladonia pocillum. I call it  Limestone Pixie-cup, but I Naturalist calls it Rosette Pxie cup.

The war memorial made of sandstone had two orange lichens:

1. Candelariella vitellina - Common Goldspeck Lichen. This does not turn red when alkali (KOH) is applied. 

Candelariella vitellina - Common Goldspeck Lichen.  Closer view
This does not turn red when alkali (KOH) is applied

2. Common Sunburst Lichen Xanthoria parietina This is very common around Settle and turns red when KOH is applied.

Filamentous alga. Maybe algae will get investigated in 2028..

Rhizocarpon reductum. This grows on siliceous acid rock, such as sandstone. The back discs often grow in concentric circles

Rhizocarpon reductum. This grows on siliceous acid rock, such as sandstone. The back discs often grow in concentric circles

There is a little bit of Lecanroa campestris (1st picture on this page) and Rhizocarpon reductum on these kerb stones. However, the biggest patches are formed by "Chewing gum lichen"  Protoparmeliopsis muralis formerly called Lecanora muralis)s

Protoparmeliopsis muralis formerly called Lecanora muralis)s

. This has "jam-tart-like reproductive bodies but has a lobed edge to the thallus.