Genus Alethopteris

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EricRoscoe at Nov 12, 2021 04:35 PM

Genus Alethopteris

5-Felices
3 Pecopteridae

Genus Alethopteris, Sterhb? & Gopp.

Frond bipinnate or tripinnate or by tripinnatifid; secondary nerves rising perpendicularly or obliquely from the medial one, simple or dichotomous, and many times forked; margins of the pinnules often revolute; front unknown.

Genus Alethopteris

5-Felices
3 Pecopteridae

Genus Alethopteris, Sterhb? & Gopp.

Frond bipinnate or tripinnate or by tripinnatifid; secondary nerves rising perpendicularly or obliquely from the medial one, simple or dichotomous, and many times forked; margins of the pinnules often revolute; front unknown.