![[Pollen Grain and Flower Stigma]](https://collections.chicagofilmarchives.org/media/cfa/images/5/1/68437_ca_object_representations_media_5143_small.jpg)
Microscopic time-lapse footage of a pollen grain and the stigma of a flower exchanging contact and producing growth activity in six segments.
![[Pollen Grain and Activated Protoplasm]](https://collections.chicagofilmarchives.org/media/cfa/images/5/1/27984_ca_object_representations_media_5144_small.jpg)
Microscopic time-lapse footage of a pollen grain and the stigma of a flower in two segments.
A microscopic time-lapse sequence which includes footage of a pollen tube's growth as well as ragweed pollen's emission of droplets of fluid while ...