Orthotrichum striatum

Revised name: Lewinskya striata

English name: Smooth bristle-moss

An acrocarpous moss that forms dull green, loose tufts with sharp-looking leaves. The capsules are held on a short seta and are semi-concealed by leaves. They have sixteen orange-brown and recurved outer peristome teeth. When dry, the capsules are smooth.

Capsules mature from late winter to summer.

In Scotland, Orthotrichum striatum has a scattered upland distribution and found in small quantities on twigs of hazel and willow, and on trunks of ash and sycamore. BBS distribution map

Look out for Frullania dilatata, Metzgeria furcata, Ulota crispa and Ulota phyllantha nearby.

Confusion species: other epiphytic Orthotrichum species, including Orthotrichum affine, Orthotrichum pulchellum and Orthotrichum stramineum

Orthotrichum striatum on willow in a park near Aberlour (VC95)