A scarlet cup-shaped fungus 5cm in diameter.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Or elf-cap, is the common name. I believe it is difficult to distinguish from the closely related S. coccinea: if I recall correctly, you suggestion is the more common species.
Lat/Lng: 54.5727, -2.9282
OS grid ref: NY400201
On ground in broad-leaf woodland