1) Fern genus 2) Genus pellaea 
Pellaea is a genus of ferns in the Cheilanthoideae subfamily of the Pteridaceae. The genus name is derived from the Greek word πελλος (pellos), meaning `dark,` and refers to the bluish-gray stems. Members of the genus are commonly known as cliffbrakes. They primarily grow in rocky habitats, including moist rocky canyons, slopes, and bluffs.....
Pellaea is a genus of ferns known as cliff brake ferns, mostly natives of tropical countries. The sori are intramarginal, terminal on the veins, and the involucre is formed of the edge of the frond.
[n] - genus of chiefly small rock-loving ferns
genus Pellaea noun genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae