Terrestrial or epiphytic, occasionally forming large colonies; stems decumbent, repeatedly branched, 9-30 x 0.8-1.6 cm, annual growth constrictions indistinct.
Leaves
Leaves reflexed to spreading, lanceolate, parallel-sided or narrowed at base, 4-8 x 1-1.5 mm, not imbricate, with slight to no reduction in leaf size between mature and juvenile portions, dark green in shade, light green in sun, yellow on decumbent portion, adaxial surfaces shiny, lustrous, margins smooth at bases, irregularly serrulate to small-toothed along distal 1/3, tips acute.
Spores
Gemmae at base of nearly every leaf on large areas of stems, 3.5-4 x 3.5-4 mm.
Notes
Latin erosus, irregularly cut away and appearing eroded, alluding to the leaf margins of this species.
