cinder rocks or loamy soil, dry to mesic forests, 500-1700 m, very rare federally listed endangered, K/O/L/Mo/H/M

montane wet, mesic, and dry forest habitats as well as subalpine dry forest and shrubland habitat, very rare federally listed endangered, known from 9 to 11 populations on Hawai‘i between 5,250 and 7,800 feet (1,600 and 2,380 meters) elevation, as of 2000, source: http://www.fws.gov/pacificislands/flora/HIferns.html

lowland mesic forests, very rare federally listed endangered, 10 populations of this fern that were last observed in 2008 are in the Waianae Mountains of O‘ahu, Lana‘‘i, East and West Maui, and Moloka‘i., source: http://www.fws.gov/pacificislands/flora/HIferns.html

rough bark of trunks and tree branches, 1200-1600 m, federally listed endangered, K/M/H

Wahiawa and Ko'olau, Very rare, federally listed endangered, K/O

low elevations, federally listed endangered species, O/M/Ni

Wet forest epiphyte (mostly on Ohia), 700-1300 m, federally listed endangered, K/Mo/H

scattered populations on steep slopes in mesic forests, 800-980 m, very rare and localized federally listed endangere, K

Diamond head crater on both inner and outer dry slopes, 100-120 m, very rare federally listed endangered, found only, O

restricted to lowland wet forest, very rare federally listed endangered, on O‘ahu and Maui. There are 10 known populations of this fern., source: http://www.fws.gov/pacificislands/flora/HIferns.html

lowland to montane forests in mesic to wet habitats, very rare federally listed endangered, found on Kaua‘i, O‘ahu, Moloka‘i, Lana‘i, and Maui. However, only 3 populations are known as of 2010, all on east Maui., source: http://www.fws.gov/pacificislands/flora/HIferns.html