Compilation
Asplenium christii

Terrestrial or less often low epiphyte or lithophyte; rhizome ± 4 mm diameter, erect or ascending, with concolorous brown narrowly triangular entire scales up to 3x0.5 mm at the base. Fronds tufted, dimorphic or uniform, fertile fronds proliferous, 1.5–2 times as long as the sterile non-proliferous fronds. Stipe matt-grey-green, 5–12 (sterile) or 6–26 cm (fertile) long, 1–1.5 mm diameter, at first with sparse lanceolate-acuminate scales ± 1 mm long, similar to those on the rhizome, later becoming subglabrous. Lamina thinly coriaceous, 1-pinnate; sterile lamina broadly lanceolate to ovate, 6–15x3–8 cm, pinnae closely spaced and not proliferous. Fertile lamina narrowly lanceolate to lanceolate, 13–27x5–8.5 cm, widely spaced and proliferous below the terminal pinna or occasionally on the pinna midrib. Pinnae in 5–12 pairs, alternate, subsessile, asymmetrically ovate to lanceolate and often slightly falcate, 2–6x1–2.3 cm, base unequally cuneate, the lower pinnae often with a pronounced lobe on the acroscopic side, margin serrate to sharply crenate, apex acute to attenuate, glabrous except for a few small brown scales along the costa below; veins forked; lower pinnae similar to others; pinnae decreasing in size towards the apex of the frond, terminal pinna similar to other pinnae, bearing a bud at its base in fertile fronds. Rachis similar to stipe. Sori several to many, along the veins from near the costa to halfway to the margin, linear, 3–8 mm long, indusium entire, 0.4–0.8 mm wide, membranous. Fig. 3: 10–11, p. 19.