A section of the apple blossom.

Apple Blossom

A section of the apple blossom.

The section of carnation shows the leaf anthers. One is in the process of doubling.

Carnation Section

The section of carnation shows the leaf anthers. One is in the process of doubling.

Illustrated is a section of a normal carnation flower.

Section of Carnation

Illustrated is a section of a normal carnation flower.

The sections of two species of Darwinia flowers.

Darwinia

The sections of two species of Darwinia flowers.

The Resin Spurge (Euphorbia resinifera) is a flowering plant that superficially resembles a cactus. "Top of Stem of Euphorbia resinifera. a, involucre with inclosed flowers; b, section of same." -Whitney, 1911

Resin Spurge

The Resin Spurge (Euphorbia resinifera) is a flowering plant that superficially resembles a cactus.…

Illustrated is a section of flower of the turban squash. It shows the ovary inside the hollowed receptacle.

Turban Squash

Illustrated is a section of flower of the turban squash. It shows the ovary inside the hollowed receptacle.

"Flower of stonecrop. I, entire flower. II, vertical section." -Bergen, 1896

Stonecrop Flower

"Flower of stonecrop. I, entire flower. II, vertical section." -Bergen, 1896

"2. flower of Fragaria vesca; 3. a section of it." -Lindley, 1853

Woodland Strawberry

"2. flower of Fragaria vesca; 3. a section of it." -Lindley, 1853

"Sections of flowers of the toad-flax (Linaria vulgaris). A, front view; a, anthers; s, stigma; n, nectar-gland. B, side view; o, ovary." -Gager, 1916

Common Toadflax

"Sections of flowers of the toad-flax (Linaria vulgaris). A, front view; a, anthers; s, stigma; n, nectar-gland.…