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Mariopteris-like leaflets
- Mariopteris muricata      rigid, triangular leaflets with more or less straight sides      leaflets with acute apex       climber hooks (not always visible)       basal leaflet of a pinna is lobed at the lower side
- Mariopteris nervosa      rounded triangular leaflets mostly with obtuse apex      distinct venation       climber hooks (not always visible)       basal leaflet of a pinna is lobed at the lower side
- Mariopteris sauveurii      leaflets or lobes strongly fused      distinct venation       climber hooks (not always visible)
- Mariopteris robusta      rounded triangular leaflets with convex sides, less oblique attached than in M. nervosa      veins a bit flexuous       climber hooks (not always visible)       basal leaflet of a pinna is lobed at the lower side
- Mariopteris cf. dernoncourtii      leaflets rounded or with rounded lobes (Sphenopteris-like)      distinct venation (not visible in this specimen)       climber hooks (not always visible)
- Fortopteris latifolia       leaflets very variable, in most cases dentate at the upper side       leaflets broadly attached and somewhat decurrent
- Pecopteris plumosa      leaflets small, triangular      leaflets oblique on the axis and confluent
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