Lomagramma sinuata C.Chr.

Rhizome often bearing 3-5 fronds close together at wide intervals; scales on rhizome-apex distinctly clathrate with very dark cell-walls, edges paler and sometimes fringed. Bathyphylls: fronds with 10-12 pairs of pinnae have apical pinnae jointed to rachis; rachis distinctly winged; middle pinnae to 9 by 2 cm with broadly cuneate acroscopic base and narrowly cuneate or slightly rounded basiscopic, edges shallowly crenately lobed (more deeply towards pinna-apex) with irregular small teeth on the crenations, apex rounded to bluntly pointed. Sterile acrophylls to 100 cm long with many pinnae; middle pinnae 11 by 2 cm to 20 by 4 cm, more or less stalked, acroscopic base broadly cuneate, its edge forming a distinct S-curve, basiscopic base narrowly cuneate (sometimes rather rounded in New Guinea), edges almost entire on larger fronds, slightly and irregularly toothed towards apex on smaller ones, texture thin, veins fine and distinctly raised on both surfaces. Fertile fronds: pinnae 10-25 cm long, 5-8 mm wide, on stalks 2-8 mm long.

A tropical plant. They start on the ground and climb up tree trunks. It is recorded in lowland regions along the north coast of PNG and on the islands. It is recorded up to 1,400 m above sea level in the Southern Highlands.