Ecology: Montane forest; on rocks and tree trunks. Elevation: 1130-2500 m. (Peru: 1760, Bolivia: 1130-2500 m). Distribution: Peru and Bolivia, southeastern United States, and Africa.
Syntrichia ammonsiana, described rather recently (1979), is distinguished by the miniature leaf-like propagula on leafless terminal stalks of the leafy stems. Other features include spathulate to ligulate leaves that are unistratose, margins plane and undifferentiated (Gallego et al. 2006).
Syntrichia ammonsiana, descrita recientemente (1979), se distingue por los propágulos con forma de hojas en miniatura sobre la porción terminal afila de los tallos foliosos. Otra característica incluye las hojas espatuladas a liguladas uniestratificadas, márgenes planos e indiferenciados (Gallego et al. 2006).