Une lame plus ou moins large , s’étend entre le pericarpe et le placenta. ” In the flowers of Saponaria officinalis Dr. Masters has observed instances of both marginal and free central placentation. Lastly, St. Hilaire found towards the southern extreme of the range of Gomphia oleaeformis two forms which he did not at first doubt were distinct species, but he subsequently saw them growing on the same bush; and he then adds, “ Voilà donc dans un meme individu des loges et un style qui se rattachent tantôt à un axe verticale et tantôt à un gynobase. ”