"Enlarged section of a Bartlett pear flower: st, style; sp, sepal; f, filament; a, anther; s, stigma; p, petal; d, disk; ov, ovule." -Department of Agriculture, 1899

Bartlett Pear Flower

"Enlarged section of a Bartlett pear flower: st, style; sp, sepal; f, filament; a, anther; s, stigma;…

"A genus of plants of the natural order ranuculaceae having four colored sepals, no corolla, and fruit numerous one-seeded achaenia with long- generally feathery- awns. The species are pretty numerous, herbs or shrubs, generally with climbing stems, natives of very different climates, and much scattered over the world." — Chambers' Encyclopedia, 1875

Clematis

"A genus of plants of the natural order ranuculaceae having four colored sepals, no corolla, and fruit…

Comfrey (also comphrey) is an important herb in organic gardening, having many medicinal and fertilizer uses. Comfrey (Symphytum officinale L.) is a perennial herb of the family Boraginaceae with a black, turnip-like root and large, hairy broad leaves that bears small bell-shaped white, cream, purple or pink flowers. It is native to Europe, growing in damp, grassy places, and is widespread throughout the British Isles on river banks and ditches.

Sepal and Fruit of Comfrey

Comfrey (also comphrey) is an important herb in organic gardening, having many medicinal and fertilizer…

The parts of a flower.

Parts of a flower

The parts of a flower.

"Diagram of the flower of Heath (Erica), have four sepals, four divisions of the corolla, eight stamens in two rows, and four divisions of the pistil. The flower is tetramerous, complete, symmetrical, and regular." — Encyclopedia Britanica, 1893

Heath

"Diagram of the flower of Heath (Erica), have four sepals, four divisions of the corolla, eight stamens…

"Dracophyllum scoparium. 1. a sepal; 2. a flower with its bract; 3. section of a seed-vessel." -Lindley, 1853

Heath

"Dracophyllum scoparium. 1. a sepal; 2. a flower with its bract; 3. section of a seed-vessel." -Lindley,…

"Floral organs of an orchid (Cattleya sp.). A, the entire flower; sep, sepal; pet, petal; B, column, showing s, stigma and r, the rostellum (beak), with the small glands at the tip; to the glands are attached the four strap-shaped caudicles of the pollinia; C, pollinia, with the four caudicles; below, the gland; D, longitudinal section of the column; p, pollinium; E, the same, enlarged." -Gager, 1916

Orchid Organs

"Floral organs of an orchid (Cattleya sp.). A, the entire flower; sep, sepal; pet, petal; B, column,…

Cross section of the anatomy of a pea blossom.

Pea blossom

Cross section of the anatomy of a pea blossom.

"A genus of plants of the natural order Saxifrangeae. This order has a calyx, usually of five sepals more or less cohering at the base; a corolla usually of five sepals more or less cohering at the base; a corolla usually of five perigynous petals, alternate with the sepals, rarely wanting; perigynous stamens; a hypogynous or perigynous disc; an overy, usually of two carpels, cohering more or less by their face, but diverging at the apex." — Chambers, 1881

Saxifrage

"A genus of plants of the natural order Saxifrangeae. This order has a calyx, usually of five sepals…