Argyrochosma microphylla
This species is limited to calcareous substrates. It can be fairly abundant in parts of the Guadalupe Mts., but otherwise appears to be pretty sparse.
Plant habit in Dog Canyon on the west side of the Sacramento Mountains, Otero County, New Mexico, 9 Jan 2005.
Abaxial view of pinnae in Dog Canyon, 9 Jan 2005.
Adaxial view of pinnae in Dog Canyon, 9 Jan 2005.
Plant habit at Devil's Hall, Guadalupe Mountains, Guadalupe National Park, Culberson County, Texas, 15 Aug 2007.