Notogrammitis rawlingsii (Parris) Parris

Rhizomes short-creeping, bearing scales. Rhizome scales ovate to narrowly ovate, 2.8–7.1 mm long, 0.5–1.0 mm wide, pale brown, concolorous, non-clathrate. Stipes indistinct, winged almost to base, hairy. Stipe hairs sparse, white to pale brown, 0.2–1.7 mm long. Fronds undivided, linear, 31–165 mm long, 3–6 mm wide; apices acute; margins entire; bases attenuate to an indistinct winged stipe; both surfaces pale green; herbaceous; glabrous or bearing sparse pale brown hairs up to 1.3 mm long on abaxial surfaces of margins and midrib. Hairs either setae, or branched hairs with setiform branches. Hydathodes absent. Sori elliptic, elongated along veins, ± parallel to mid-vein or slightly oblique, 2–5 mm long, in 2–44 pairs in mid to upper part of lamina; bearing stout, dark red-brown hairs, up to 0.7 mm long, in and around the soral region. Sporangia 150–210 µm long; spores 21–31 µm diameter.

Notogrammitis rawlingsii is a very distinctive species characterised by its short-creeping rhizome, lack of distinct stipes, linear fronds, and presence of stout, dark red-brown hairs in and around the soral region. It is largely confined to lowland kauri forest in the northern North Island. It is most similar to N. billardierei, but distinguished by the characteristic red-brown hairs in the soral region and upright habit.

Notogrammitis rawlingsii is confined to kauri or occasionally podocarp or hard beech forest. It usually grows on roots amongst forest mosses, on rotting logs, or sometimes on the ground. It reaches 600 m on Mt Pirongia.