If you are visiting Sydney, Australia, please make sure to see this exhibit (Monday 15 April - Friday 26 July 2013, 10 am-4 pm.Red Box Gallery, National Herbarium of NSW, Mrs Macquaries Rd, Sydney) and the Botanica display.
And here are the winners (Please, click the images to enlarge):
Rogerio Lupo from Brazil for Vellozia perdicipes sp.nov.
Lucy Smith from UK for Lecomtella madagascariensis
The following three were Highly Commended recipients ($500):