Simple, venation free, hydathodes sometimes present on vein endings on adaxial surface.
Sori superficial or slightly sunken on abaxial lamina surface, in two rows , circular to linear-elliptic. Sporangia glabrous
The genera Notogrammitis and Grammitis are challenging to differentiate in a key. For this reason the keys to species under Grammitis covers both genera.
| Key to the species | |
1 | Fronds usually <5 cm long; stipe lacking hairs | 2 |
| Fronds usually >5 cm long; stipe conspicuously hairy | Notogrammitis billardierei |
2 | Sori circular, and coalescing into a raised mass towards the tip of the lamina | Notogrammitis crassior |
| Sori globose to oblong, 2–25 pairs in upper two-thirds of frond Back to 1 | Grammitis stenophylla |