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Course image: Steven Severinghaus [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] in Flickr made available under Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence.

Grateful acknowledgement is made to the following sources for permission to reproduce material in this course.

Parts of this text come from Chapter 4 of Why People Need Plants: © 2010 The Board of Trustees of the Royal Botanic Gardens, Kew and The Open University.

Fig. 8a © James King-Holmes/Science Photo Library.

Fig. 8b © Brian Gadsby/Science Photo Library.

Fig. 9 © Dr Rob Stepney/Science Photo Library.

Fig. 10 © Nigel Cattlin/Alamy.

Fig. 11© Andrew Lawson/

Fig. 12 © Zhang Liwei/

Fig. 13 © Andrew McRobb / RBG Kew.

Fig. 15 (wheat) © George Mastoridis/

Fig. 15 (sugar beet) © Wessel Cirkel/

Fig. 15 (sugar cane) © Andrew McRobb/RBG Kew.

Fig. 15 (sugar) © foodfolio/Alamy.

Fig. 17 © Howard Davies/Alamy.

Every effort has been made to contact the copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.

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