The following article is from the book Uncle John&...  ...s know that not only phototropism, but all “ tropisms ” (turnings in plants) are affected by auxin...  ...s bend and turn in certain directions, creating a tropism . Tropisms are especially important because t...

(vimeo link) The Tropism Well bows as you approach it, filling a pitcher w...  ...ublic places. http://www.poietic.co.uk/ourwork/ tropismwell -via Laughing Squid