Total: 10
Native to Mexico, where it grows saxicolously on rock faces and as an epiphyte in pine and oak forest at elevations of 1,800 to 3,200 m.
Occurs in the Cusco region of Peru, growing saxicolously on steep rock faces near the Urubamba River at 2,070 to 2,300 m elevation. The specific epithet derives from the Inca ruins of Machu Picchu.
Native to Ancash in Peru, where it grows on vertical rock walls at elevations of 2000 to 2600 m. The specific epithet honours Ludwig G. Maly.
A species known from the mountains near Brealito in Salta province, Argentina, growing on steep rock faces and flatter rock formations at about 2,700 m.
A stunning xeric species with broad, recurved leaves densely covered in white trichomes. It grows on steep cliffs and is adapted to arid environments with strong sunlight.
Ranges through the Mexican states of Hidalgo, Jalisco and Puebla, growing saxicolously on steep rock walls at 1,300-2,000 m elevation. The specific epithet honours the Mexican botanist P. Maury.
This species is distributed in Colombia and Ecuador, growing as an epiphyte in dry thickets and also on rocky cliffs at elevations of 650 to 1885 m. A variety is known.
Native to the state of Guerrero in Mexico, growing on vertical cliffs at around 1500 m.
Native to the state of Zacatecas in Mexico, this species grows on steep rock walls at elevations of 1800 to 2000 m. The specific epithet derives from the Sierra de Morones, where it grows abundantly on rock walls.
Native to Valle and Cauca in Colombia and to Cocle in Panama, where it grows at 450 to 2000 m on banks, cliffs and in forest. It occurs terrestrially, saxicolously and as an epiphyte.