Ecology: Páramo and puna, probably high, open motane, on soil. Elevation: 2700-4300 m (Colombia: 3750 m, Peru: 2700-4250 m, Bolivia: 4000-4300 m). Distribution: Endemic to the tropical Andes.
Campylopus perexilis is a small species with equally foliate stems to 10 mm, leaves to 4 mm long, distally tubulose with a rather blunt apex, costa to 1/2 the width at leaf base, hyalocysts distinct, quadrate, alar cells absent or indistinct, basal cells thin-walled, rectangular, upper cells subquadrate to short rectangular, thick-walled.
Specimens: COLOMBIA. Boyacá: Cleef 7116 (COL, MO, U).