"Types of vernation. 1, 2, cherry; 3, 4, European walnut; 5, 6, snowball; 7, lady's mantle; 8, oxalis."…
"Pinnately compound leaf of pea. A tendril takes the place of a terminal leaflet." -Bergen, 1896
"Leaves standing nearly vertical in compass-plant. (Silphium laciniatum). A, view from east or west;…
"Common Pitcher-Plant (Sarracenia purpurea). At the right one of the pitcher-like leaves is shown in…
"Leaves of sundew. The one at the left has all its tentacles closed over captured prey; the one at the…
"The parts of the flower. cal, calyx; cor, corolla; st, stamens; p, pistil." -Bergen, 1896
"Stamens and pistil of the grape, with a nectar gland, g, between each pair of stamens." -Bergen, 1896
"A violet with cleistogamous flowers. The objects which look like flower-buds are cleistogamous flowers…
"Fruits of Linden, with a bract joined to the peduncle and forming a wing." -Bergen, 1896
"Fruits adapted for dispersal by the shaking action of the wind: jimson weed (Datura)." -Bergen, 1896
"Spore-plant of a fern (Aspidium filix-mas). A, part of a rootstock and fronds; fr, young fronds unrollin.…
"A scouring-rush (Equisetum sylvaticum). At the right is a colorless fertile stem, in the middle a green…
"Longitudinal section through fertilized ovule of a spruce. p, pollen grains; t, pollen tubes; n neck…
"A, Shapes of bases of leaves; B, Peltate leaf of Tropaeolum. 1, heart-shaped; 2, arrow-shaped; 3, halberd-shaped."…
"Raceme of common red currant. p, peduncle; p', pedicel; br, bract." -Bergen, 1896
"Head of yarrow. A, top view; B, lengthwise section. re, receptacle; i, involucre; r, ray-flowers; d,…
"Fescue-grass (Festuca pratensis). A, spikelet; B, a flower, the lodicules in front and the palea behind;…
"Cotton is a downy substance produced on the seeds of he cotton plant, Gossypium, which is herbaceous,…
"The most common variety of the flax plant has a very slender erect stem, two or three feet high, branching…
"Hemp adapts itself to diversities of climate, and is cultivated equally under the burning sun of the…
"The plant tillers like wheat, but not to the same degree. The cane ground is kept clean by hand-hoeing,…
"The castor oil plant belongs to an order whose affinities have not yet been accurately limited by botanists;…
"The mint family of plants, of which the most important species are peppermint, spearmint and penny-royal,…
The nutmeg trees are genus of the evergreen tree. The flowers grown on the nutmeg tree can be used as…
The cinnamon tree is a evergreen tree small in stature. The bark from the tree is used as a the spice,…
"Pimento or Jamaica pepper, otherwise called allspice, is a small berry, the fruit of a beautiful tree,…
" Our engraving represents a wonderfully singular and beautiful plant, which grows among the mountains…
"This tree, a native of India, is remarkable for its vast branches. It is a species of fig; has ovate,…
"Called the Indian fig. The opuntia is a fleshly and succulent plant, destitute of leaves, covered with…
"a genus of algae. P.nivalis (red-snow) appears on the surface of snow, tinging extensive tracts in…