by Nathaniel Lord Britton & Addison Brown, An Illustrated Flora of the Northern United States… (1913)
“ Mostly small plants, with erect or recurved slender filiform simple or dichotomously divided or cleft leaves. Sporanges in 2 rows along the close slender segments of small pinnate terminal spikes and partially protected by the narrowly reflexed indusiiform margin. [Greek, in allusion to the divided or deeply cleft leaf-blades of some species.] A genus of about 25 species, of wide geographic distribution, mostly in tropical regions. Type species: Schizaca dichotoma (L.) J. E. Smith. ”
