Type: Bolivia. La Paz, Prov. Sud Yungas, 31 km from Chulumani to Asunta, on the riverbanks of the Rio Tamampaya, passing Villa Barrientos, on rocks in dry Yungas forest, 16°17'S 67°24'W, 1090 m, 19 Oct. 2006, R. Vasquez, J. Peters, N. Schutz & R. Lara 5234 (holo LPB; iso SEL, Herbarium Vasquezianum). Fig. 1-4.