Sharp-eyed readers may remember a recent Nibble about somewhat quixotic efforts to promote cultivation and consumption of purslane (Portulaca oleracea) in the US, driven more by necessity than conviction. Well, one particularly sharp-eyed reader pointed out that across the border, in Mexico, there’s a whole network of researchers within the Sistema Nacional de Recursos Fitogenéticos para la Alimentación y la Agricultura devoted to this unusual vegetable, which has some half dozen accessions in the bank to play with. There are 106 accessions in Genesys. Purslane researchers of the world, unite! You have nothing to lose but your mineral deficiencies.