Thomas’ latest manuscript, “An explanation for the prevalence of XY over ZW sex determination in species derived from hermaphroditism”, is on L’ACTU (by Unil): À l’origine du sexe biologique d’un individu (in French).
You can find the last paper direcly in PNAS here.
The thumbnail of this news features photos of Annual Mercury (Mercurialis annua) by Xinji Li. In (A) a male plant, in (B) a female plant and in (C) a hermaphroditic plant.