Third lecture in Professor Tim Walker's Organisms lecture series in which he looks at what plants have contributed to human existence.  Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Organisms Lecture 4: The Global Strategy for Plant Conservation 2020

A series of four lectures given by Timothy Walker to the first year Biology undergraduates as part of the Organisms course.  These lectures cover alternation of generations, flowering plants, conservation and the GSPC, and the importance of plants for Man.