Ecology. Amazon and Chiquitano forest to Yungas premontane and lower montane forest; on soil, rocks, logs, exposed roots and base of treelets and trees. Elevation. 180-1500 m. Distribution. Bolivia: Cochabamba, La Paz, Pando, Santa Cruz. World range: widespread in the neotropical lowlands, extending into the lower montane.
Callicostella pallida is common in the humid lowlands and lower montane forest. This species is distinguished by margins regularly toothed, papillose laminal cells and papillose seta. Hookeria scabripes Müll. Hal. (Callicostella scabripes (Müll. Hal.) Broth.), Nuovo Giorn. Bot. Ital. n. s. 4: 133. 1897, syn. nov. Based on Germain 1145 (PC!) from Cochabamba.