This moss is certainly a feather moss and has keyed out to Streaky Feather Moss (Brachythecium glareosum). The old capsule is 1-1.25mm long and the seta 7-8mm. I hope to find some more information and to get some better photos anon. At any rate, it is a new plant and has earned its number in this year’s list!
#boggybrae #garden #wildplant for 2015: 96