As far as I can make out the use of CUPS is interchangeable with CAPS in the fungus name; it seems to often depend on where you are!The Scientific name is Sarcoscypha coccinea , but there is a near identical species called Sarcoscypha austriaca which can sometimes only be identified by spore shape. However, from the bright colour I am reasonably sure that our Scarlet Elf Cups /Caps are Sarcoscypha coccinea.(I had spoken to an amateur fungi expert a few years ago on this)However, I await any comments from any of our regular fungi people.
Some of our Fungi experts are discussing which species this is, I am sure that we will find out positively in the next few days.
Volunteers/staff blog for NBGW