Ecology: Open and forested montane forest; on soil, rocks and rarely epiphytic. Elevation: 1000-4100 m (Venezuela: 1800-2000 m, Colombia: 1800-3000 m, Ecuador: 2200-4100 m, Peru: 1000 m, Bolivia: ? m). Distribution: Costa Rica and tropical Andes.
Campylopus huallagensis is characterized by the large plant size, to ca. 10 cm, interruptedly comose foliate, narrowly lanceolate leaves to 10 mm, distally serrate, costa ca. 1/3 the width of leaf base, excurrent, upper cells elongate-oval, 4-6x1, basal cells rectangular, thick-walled and usually strongly porose, alar cells distinct, usually reddish. Treated as a variety of C. huallagensis by Frahm (1991), C. weberbaueri is maintained here as a separate species (see species). The report from Vaupés, Colombia (Schultes & Cabrera 13413FLAS) is likely the result of mislabeling.
Specimens: VENEZUELA. Bolívar: Steyermark 74980 (NY). COLOMBIA. Antioquia: Churchill 16392 (HUA, NY); Huila: Cleef 5068 (MO, U). ECUADOR. Pichincha: Jaramillo & Zak 8156 (NY).