Photo of a box of chocolates

Fifty Shades of Green

For Valentine's weekend we look at the history of aphrodisiacs and plants that could heighten the romance of the special day.

Xanthoria elegans

Lichens benefit from sunscreen

New research reveals that by developing natural sunscreen, a major group of lichens was able to colonise sun-exposed rocky habitats, leading to an ‘evolutionary radiation’.

Guillaume Besnard and Nanjarisoa Olinirina Prisca

Extinct grass sequenced

In what is believed to be the first application of next-generation DNA sequencing to an extinct plant, sequences from the extinct grass Sartidia perrieri have been obtained to investigate the origin of C4 photosynthesis.