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Genus Grammitis Family Polypodiaceae

Synonyms: Grammitis APNI*

Description: Rhizome erect or short-creeping, covered with brown scales.

Stipe short, mostly bearing spreading hairs; lamina thin and translucent to leathery or fleshy.

Sori superficial, arranged in a single row on each side of the midvein, circular or elliptic, sometimes confluent.

Distribution and occurrence: World: c. 200 species, tropical to southern cool-temp. regions. Australia: 12 species, Qld, N.S.W., Vic., Tas.

Text by Peter G. Wilson
Taxon concept:

 Key to the species 
1Frond covered in red-brown, spreading hairs2
Frond glabrous or with hairs on stipe and frond base only3
2Hairs 0.5–2 mm long; fronds 3–8 cm long including stipeGrammitis nudicarpa
Hairs 2–4 mm long; fronds 6–25 cm long including stipe
                       Back to 1
Grammitis wattsii
3Frond outline linear, margin entire, glabrous4
Frond outline narrowly obovate to oblanceolate, margin often faintly scalloped, glabrous or with hairs on stipe
                       Back to 1
4Frond to 9 cm long and 6 mm wide; hydathodes present on upper surface; rhizome scales spreading or appressed, 3–5 mm longGrammitis stenophylla
Frond to 25 cm long and 9 mm wide; hydathodes not present on upper surface; rhizome scales spreading, c. 10 mm long
                       Back to 3
Grammitis diminuta
Fronds usually >5 cm long; stipe conspicuously hairy; sori elliptic, coalescing or not but maintaining two discrete rows either side of midrib; rhizome erect to short-creeping
                       Back to 3
Notogrammitis billardierei
5Fronds usually <5 cm long; stipe lacking hairs; sori circular, and coalescing into a raised mass towards the tip of the lamina; rhizome long-creepingNotogrammitis crassior

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