FIG. 1 l-l . F. vesca semperflorens. The clusters shown are of Erige du Poitou, a runnerless variety of the everbearing, or Alpine form of F. vesca. It is still quite widely grown in France because of its delightful vinous aroma. This is a 14-chromosome species which crosses with difficulty with 56-chromosome garden strawberries. Seedlings from such a cross bear imperfect fruit