The Different Forms of Flowers on Plants of the Same Species

by Charles Darwin

Baillon, emission of the tubes from pollen-grains.

Belhomme, M., on ray-florets.

Bennett, A.W., on Impatiens fulva. flowers fertilised whilst in the bud state.

Bentham, Mr., on the differentiation of the sexes. on the cleistogamic flowers of Ononis.

Boragineae.

Boreau on cowslip and primrose.

Borreria.

Bouche on Pavonia. effect of temperature and light on corolla.

Bouvardia leiantha.

Braun on Dracocephalum.