epigyny

Apart from this, botanists are generally agreed that the concrescence of parts of the flower-whorls -- in the gynaeceum as the seed-covering, and in the corolla as the seat of attraction, more than in the androecium and the calyx -- is an indication of advance, as is also the concrescence that gives the condition of epigyny.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

Monocotyledons a similar advance from hypogyny to epigyny is observed, and from the dorsiventral to the radial type of flower.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

In the polypetalous forms progression from hypogyny to epigyny is generally recognized, and where dorsiventrality with insect-pollination has been established, a dominant group has been developed as in the Leguminosae.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various