Trentepohlia spp.

Orange coloured green alga, frequently found growing on and with bryophytes, especially epiphytes but also on humid slopes. When small, populations are easily confused with bryophilous Hypocreales like Bryocentria and Pezizales like Octosporella.

Trentepohlia on Metzgeria furcata
Trentepohlia on and with Frullania dilatata.