Revised name: Lewinskya affinis
English name: Wood bristle-moss
An acrocarpous species that forms small, mid-green to yellowish green, cushions. The leaves have recurved margins and have an acute tip. Capsules have an outer peristome with eight pairs of reflexed teeth. Old capsules are light brown and strongly furrowed when dry.
Capsules mature from spring to autumn.
In Scotland, Orthotrichum affine is widespread on trees and shrubs, including ash, hazel, sycamore and willow. BBS distribution map
Confusion species: any other epiphytic Orthotrichum or Ulota species, including Orthotrichum pulchellum, Orthotrichum stramineum, Ulota crispa and Ulota drummondii
scottishlichens.co.uk 