"Ornamental plants, cultivated chiefly for their handsome flowers. The Abelias are small or medium-sized…
"Aberia Caffra, Hook. f. & Harv. Fig. 59. Thorny, glabrous: lvs. obovate, obtuse, cuneate at base, entire:fls.…
"Abutilon macropodum. 1. an unexpanded flower; 2. the stamens and styles; 3. a ripe fruit, consisting…
Acanthus spinosus offers, by its formally regular growth and its crisp, crinkly and prickly leaves,…
"Nelsonia campestris. 1. flowers; 2. pistil; 3. capsule; 4. cross section of a seed." -Lindley, 1853
"Bixa orellana. 1. a pistil and two stamens; 2. a cross section of the ovary; 3. a ripe fruit. 4. a…
"Acicarpha spathulata. 1. section of an entire flower; 2. perpendicular section of ripe fruit." -Lindley,…
Half of an acorn, cut lengthwise, filled by the very thick cotyledons, the base of which encloses the…
Also known as Butcher's broom. A shrub with flat shoots that give the appearance of stiff, spine-tipped…
Adder-Tongue, Ophioglossum: spore-cases in a kind of spike: a, a portion of the fruiting part…
Ophioglossum vulgatum, or Southern Adderstongue is a fern-like plant commonly growing in sand dunes.
A crowded species of sugar cane. The branches grow up to 12 inches in length, and the stems up to 7…
Agaricus cepaestipes is a mushroom from a large genus with both edible and poisonous species.
A plant with large fleshy leaves that yields many products. It is a tall plant with a spiny top that…
Littaea geminiflora, or the Twin-Flowered Agave, showing the flower and the whole plant.
Marlea begonifolia or Alangium chinense is an evergreen tree native in China used for its medicinal…
Magnified view of some of a simple fresh water Alga, the Tetraspora lubrica, each sphere of which may…
A plant that varies in size but always has thick fleshy leaves that are spined. It also contains a juice…
A perennial flower with white petals and green foliage. They tend to bloom in April and May, and are…
"Andrea nivalis, natural size; 2. the same much magnified; 3. spore-case with the torn calyptra; 4.…
The flowers of Archangelica officinalis, or the Garden Angelica, a flowering plant in the Apiaceae family.
A decorative divider with wheat in the center, surrounded by dogs, rabbits, and other plants.
"Anona furfuracea. 1. an expanded flower; 2. a vertical section of male and female apparatus, which…
Diagram of the lower part of an anther, cut across above, and the upper part of a leaf, to show how…
"Anthodiscus trifoliatus. 1. a flower bud; 2. a flower; 3. a perpendicular section of the pistil." -Lindley,…
From left to right: Acuminate, Acute, Obtuse, Truncate, Retuse, Emarginate, Obcordate, Cuspidate, Mucronate.
Aphelandra cristata is a flowering plant shown potted here because it is often used as a houseplant.
"Aptandra Spruceana. 1. an expanded flower; 2. a petal; 3. tube of stamens, with 4 petaloid glands at…
"Aquilaria Agallochum. 1. a flower; 2. the same split open; 3. a section of the ovary." -Lindley, 1853
Branchlet of the American Arbor-Vitae, considerably larger than in nature, terminated by its pistillate…
One of the scales or carpels of the American Arbor-Vitae, the inside exposed to view, showing a pair…
An evergreen shrub with bright red flowers. It usually reaches between 20 and 25 feet, and is commonly…
Arcyria flava (or Arcyria obvelata) is a species of fungus or slime mold found in Australia.
"1. Aretia Vitaliana; 2. a flower cut open; 3. the pistil; 4. a vertical section of the latter, showing…
"Triglochin palustre. 1. A flower; 3. a ripe fruit; 4. one ripe carpel opened and exhibiting a seed;…