I was in London earlier this week for an editorial meeting with many of the Annals of Botany members. As part of it, I took my first trip to Kew. So long as you’re not thinking, you can take a pleasant stroll around the gardens in two or three hours. There’s some nice shaded paths [...]

Why are sterile anthers and carpels retained in some flowering plants, given their likely costs? Yu et al.  study a cryptically dioecious species, Petasites tricholobus, in which male and female plants each have two floret types that appear pistillate and hermaphroditic. Sterile female structures in male florets are found to be essential for secondary pollen [...]