CHAPTER XXIX

PTERIDOSPERMEAE (continued from Volume II). Pp. 35–85.

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I. =LYGINOPTERIDEAE= 35–85 =Lyginopteris= 35–70 _Telangium_ 54, 55; _Lagenostoma_ 55–64; _Lagenospermum_ 64–66; _Pterispermostrobus_ 66, 67.

=Heterangium= 70–85 _Sphaerostoma_ 78–81.