Blotiella lindeniana is the only Neotropical species of this genus; the remaining species reside in Africa and Madagascar. It is distinguished by the areolate venation without free included veinlets, marginal sori, sub-opposite pinnae, and hirsute leaves.
- Marginal sori
- Abaxial leaf surface
- Adaxial leaf surface
- Yong leaf
- Areolate venation
- Areoalate venation
- Adaxial leaf surface