In S. concavifolium the perichaetia are terminal. Cryphaea filiformis was attributed to Georgia by Sharp et al. Cryphaea glomerata W. S. Sullivant in A. Gray, Man. Cryphaea glomerata W. S. Sullivant var. Calyptra broadly conic.
Spores smooth or papillose.
Cryphaea glomerata often grows mixed with C. nervosa , but the two can be easily distinguished under low magnification by the more narrowly pointed and plicate-appearing leaves of C. nervosa . The ranges of C. glomerata and the subtropical C. filiformis overlap in southern Florida. See comments under C. filiformis for differentiation from that species. Branches short or elongate, mostly simple. Calyptra subcucullate to cucullate.