Lyginopteridopsida Novák 1961 emend. nov.
nomenclatorial act:
emend.
Page:
96
diagnosis:
Gymnospermous plants bearing ovules with a flask-shaped pollen chamber terminated by an elongate neck (salpinx/lagenostome/nucellar beak) and that are supplied by a single vascular system. Foliage: Frond-like with proximal dichotomy of primary rachis.
systematic position:
gymnosperms
Classification:
