Plant Science.  Episode 4,  Fern Spores and the Vascular Conquest of Land. 

 - 1 online resource (streaming video file) (30 minutes):  digital, .flv file, sound 
<br/><br/> Title from title frames.  Film  In Process Record. 
<br/><br/>Catherine Kleier 
<br/><br/> Originally produced by The Great Courses in 2017. 
<br/><br/> Botanists still struggle to unravel the full evolutionary history of ferns, hardy plants of staggering reproductive and colonization power. With billions of lightweight spores produced by each individual and the vasculature to transport nutrients throughout the plant, ferns are found in low-light and bright-light environments from the arctic regions to the tropics. 
<br/><br/><br/>Mode of access: World Wide Web. 
<br/><br/><br/>In English 
<br/><br/><label>Publisher. No.: </label>6714584  Kanopy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.<br/>Environmental sciences.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Education films.