Ecology: Amazon forest adjacent to the highlands, to open montane; on rocks, often along streams. Elevation: 340-2500 m (Colombia: 1695-2500 m, Ecuador: 1815 m, Bolivia: 340 m). Distribution: Mexico, Central America, Cuba, and northern Andes.
Bryum renauldii is associated with stream habitats. In Bolivia this species was found at a lower elevation than most other recordeds from the tropical Andes (ca. 1500-2400 m, but as high as 4200 m), and thus should be expected at higher elevations. This species is distinguished by the ovate or nearly oval leaves, obtuse-rounded apex, unbordered margins that are recurved below, and a slender tapering costa that ends well below the apex or is subpercurrent. In plant size and leaf shape this species may be confused with B. limbatum, but that species differs by the broadly acute apex and the percurrent to short excurrent costa.
Specimens: COLOMBIA. Antioquia: Churchill et al. 18356 (HUA, MO, NY); Nariño: Ramírez P. 10754 (MO, PSO). ECUADOR. Pichincha: see type of Hygrohypnum ellipticum; Zamora Chinchipe: Churchill et al. 24346 (LOJA, LPB, MO, QCNE, USZ). BOLIVIA. La Paz: Fuentes et al. 4069 (USZ).