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Xiphopteris Kaulf.

Small, erect or pendulous epiphytes. Rhizome dictyostelic, erect or ascending, short with densely crowded fronds towards the apex, scales minute, narrow, basally attached, entire +/- opaque brown. Fronds stipitate to subsessile, the stipes not articulate to the rhizome, lamina linear or elongate, +/- tapered at both ends, pinnatifid or pinnate with adnate contiguous pinnae, each pinnae with a single siimple or often once-forked vein, often thin and translucent, or thick and leathery, glabrescent, or with simple, glandular or non-glandular unicellular hairs, basal pinnae sterile, apical pinnae fertile. Sori solitary on each segment, mostly round when mature, receptacle generally elongate, terminal or subterminal on the acroscopic branch of a vein, superficial, exindusiate, parphyses lacking, sporangia on a uniseriate stalk, naked, annulus vertical, interrupted of c.8-16 thickened cells. Spores trilete.

Species in Papuasia

1a. Sporangia on entire apical portions of the fronds X. antipodialis
Sporangia in sori on lateral segments or pinnae 2
2a. Not glandular pubescent 3
Glandular pubescent X. glandulosopilosum
3a. Pinnatifid (not cut to rachis) 4
Pinnate 7
4a. Subcoriaceous or papyraceuos 5
Coriaceous X. govidjoaense
5a. Lamina glabrescent X. subpinnatifida
Lamina hairy 6
6a. Fertile lobes quadrangular Polypodium pumilum
Fertile lobes roundish or triangular Polypodium sepikense
7a. Frond up to 4 cm long Polypodium musgravianum
Fronds over 10 cm long 8
8a. Fronds glabrous X. conjunctisorum
Fronds hairy Polypodium pullei