Botanists uncover the reason for an orchid's delicate shape, deforestation is probably worse than you thought, and a test of killing weeds without herbicide.
You may have heard the phrase "you are what you eat", but some scientists are tracking the evolution of new diets in orchids by taking the phrase literally.
Zotz and colleagues ask for a re-evaluation of the occurrence, evolution, and function of the velamen radicum in both terrestrial and epiphytic angiosperms
Pyroloid mixotrophy does not respond plastically to ageing or to light level. This contrasts with the usual view of a convergent evolution with orchids.