Calymmodon Presl

Small, erect or pendulous epiphytes. Rhizome dictyostelic, erect or ascending with densely crowded fronds towards the apex and persistent appressed stipe bases and roots basally, scales basally attached, entire, +/- opaque brown. Fronds stipitate, the stipes not articulate to the rhizome, lamina linear or elongate, +/- tapered at both ends, deeply pinnatifid or pinnate with adnate contiguous or stalked pinnae, or merely toothed, each pinnae with a single medial vein, thin to thick and leathery, glabrescent or with simple unicellular hairs; veins simple, solitary in each segment, rarely forked, basal pinnae sterile, apical pinnae fertile. Sori solitary and subapical on each segment, the basiscopic margin of each fertile lobe folded towards the acroscopic margin and protecting the sorus, receptacle mostly slightly elongate, terminal or subterminal on the vein, exindusiate, parphyses lacking, sporangia on a uniseriate stalk, naked, annulus vertical, interrupted of c.12 thickened cells. Spores trilete.

Species in Papuasia