Close-up and time-lapse photography enables us to examine the liverwort, Marchantia, a standard example of alternation of generations. The role of water, essential to the reproduction of Byrophytes, is visualized as we see the actual transfer of sperm from antheridia to archegonia. The complete cycle from gametophyte to sporophyte and back to gametophyte is traced.

We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at if you have questions about the footage and are interested in using it in your project.

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