Asplenium diellaciniatum (no common name, NCN), a terrestrial or epipetric (growing on rocks) fern in the spleenwort family (Aspleniaceae), is endemic to Kauai. Stipes (blade stalk) and rachis (midrib) are shiny, black or purple-black to maroon. Blades are one- to two- (sometimes three-) pinnate (...