The Different Forms of Flowers on Plants of the Same Species

by Charles Darwin

Cratoxylon formosum.

Crocker, C.W., on Plantago lanceolata.

Cryptostachys.

Cuphea purpurea.

Darwin, Charles, on reproductive organs under cultivation. intercrossed plants. prepotency of pollen. insects fertilising flowers. Cephalanthera grandiflora. Epidendron and Cattleya. number of pollen-grains.

Darwin, W., on Pulmonaria angustifolia.

Datura arborea.

Delpino, plants fertilised by the wind. on the walnut. Polygonaceae. pollen-grains. Thymus serpyllum. closed or cleistogamic flowers. Viola odorata.

Dianthus barbatus.

Dickie, Dr., on Eriophorum angustifolium.