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The flower of Coryanthes speciosa, a species of Bucket Orchids.

Bucket Orchid

The flower of Coryanthes speciosa, a species of Bucket Orchids.

"Megaclinium Bufo; 1. a portion of a spike magnified; 2. flowers in various positions, more magnified." -Lindley, 1853

Bulbophyllum bufo

"Megaclinium Bufo; 1. a portion of a spike magnified; 2. flowers in various positions, more magnified."…

The flower of a species of Caladenia orchids.

Caladenia Orchid

The flower of a species of Caladenia orchids.

The flower of the Angraecum eburneum species of Comet Orchids.

Comet Orchid

The flower of the Angraecum eburneum species of Comet Orchids.

The flower of a the Small Spathe Disa (Disa spathulata), a species of orchid.

Disa Orchid

The flower of a the Small Spathe Disa (Disa spathulata), a species of orchid.

The flower of the Diuris or Donkey Orchid.

Donkey Orchid

The flower of the Diuris or Donkey Orchid.

The flower of the orchid, Drymoda picta.

Drymoda picta

The flower of the orchid, Drymoda picta.

Fly orchid (Ophrys insectifera) is a plant of the family Orchidaceae, a native of the British Isles and Europe favouring sites with alkaline soil. The name arises because it resembles a fly, being totally dependent on flies and bees for pollination. However this is fairly unsuccessful as they seldom visit the flower and it forms seed only infrequently. The plants use scent to attract male flies, which pollinate the flowers as they attempt to mate with the flower. The scent released by the flowers mimic female fly sexual pheromones.

Fly Orchid

Fly orchid (Ophrys insectifera) is a plant of the family Orchidaceae, a native of the British Isles…

"Hetaeria pygmaea; 2. a flower; 3. the fertile stamen and two lateral sterile ones; 4. a cross section of the ovary." -Lindley, 1853

Hetaeria Orchid

"Hetaeria pygmaea; 2. a flower; 3. the fertile stamen and two lateral sterile ones; 4. a cross section…

Herminium monorchis or the Musk Orchid is a flowering plant of the Orchid family.

Musk Orchid

Herminium monorchis or the Musk Orchid is a flowering plant of the Orchid family.

The flower of the orchid, Oberonia griffithiana

Oberonia Griffithiana

The flower of the orchid, Oberonia griffithiana

"2. Cycnoches ventricosum; 4 and 5. C. Egertonianum (Swan Orchid); the others intermediate forms." -Lindley, 1853

Swan Orchid

"2. Cycnoches ventricosum; 4 and 5. C. Egertonianum (Swan Orchid); the others intermediate forms." -Lindley,…

"Lip of Warrea bidentata" (Warrea lindeniana). -Lindley, 1853

Warrea Orchid

"Lip of Warrea bidentata" (Warrea lindeniana). -Lindley, 1853

Pollinium of an Orchis (Habenaria), with its stalks attached to a sticky gland.

Polllinia of a Orchis

Pollinium of an Orchis (Habenaria), with its stalks attached to a sticky gland.

Two individuals of an Oscillaria.

Oscillaria

Two individuals of an Oscillaria.

Fruit (cremocarp) of Osmorrhiza; the two akene-like ripe carpals separating at maturity from a slender axis or carpophores.

Osmorrhiza

Fruit (cremocarp) of Osmorrhiza; the two akene-like ripe carpals separating at maturity from a slender…

"Egg on beaker of water, to show osmosis." -Bergen, 1896

Osmosis

"Egg on beaker of water, to show osmosis." -Bergen, 1896

An apparatus, used to demonstrate how root-hairs are used to take in soil-water

Osmosis Apparatus

An apparatus, used to demonstrate how root-hairs are used to take in soil-water

The ovary of Frostweed, cut across and magnified, (Gray, 1858).

Ovary

The ovary of Frostweed, cut across and magnified, (Gray, 1858).

Ovary of Sand-Spurrey, cut across (Gray, 1858).

Ovary

Ovary of Sand-Spurrey, cut across (Gray, 1858).

Ovary of the flower of the Morning Glory, cut in half.

Morning Glory Ovary

Ovary of the flower of the Morning Glory, cut in half.

Ovary of the flower of the Morning Glory, cut in cross-section.

Morning Glory Ovary

Ovary of the flower of the Morning Glory, cut in cross-section.

Ovary of a prunella plant.

Prunella ovary

Ovary of a prunella plant.

This shows an ovate leaf.

Ovate Leaf Shape

This shows an ovate leaf.

The palm is indigenous to the Southern states.

Palm

The palm is indigenous to the Southern states.

"Sagus Rumphii. 1. a flower; 2. the same opened; 3. a section of an ovary; 4. a section of a seed of Sagus filaris; 5. fruit and remains of spadix." -Lindley, 1853

Palm

"Sagus Rumphii. 1. a flower; 2. the same opened; 3. a section of an ovary; 4. a section of a seed of…

"Inflorescence of Chamaerops humilis, in its spathe; 2. a portion of the same, with the fruit ripening; 3. a male flower; 4. a female flower; 5. a ripe fruit; 6. a section of another variety, showing the seed; 7. a seed with a portion of the surface cut away, to display the embryo." -Lindley, 1853

Fan Palm

"Inflorescence of Chamaerops humilis, in its spathe; 2. a portion of the same, with the fruit ripening;…

The Sago Palm (Metroxylon sagu) is a tree in the Arecaceae family of palms.

Sago Palm

The Sago Palm (Metroxylon sagu) is a tree in the Arecaceae family of palms.

A Palm-stem in transverse and longitudinal section, the dots on the cross sections represent cut ends of the woody bundles or threads.

Palm-stem

A Palm-stem in transverse and longitudinal section, the dots on the cross sections represent cut ends…

Palmate leaf of five leaflets of the Sweet Buckeye.

Palmate Leaf

Palmate leaf of five leaflets of the Sweet Buckeye.

From left to right: Three Lobed, Three Cleft, Three Parted, Three Divided.

Palmately Leaves

From left to right: Three Lobed, Three Cleft, Three Parted, Three Divided.

"Palm Trees. 1. Corypha Gebanga; 2. Nipa fruiticans." -Lindley, 1853

Gebang and Nipa Palm Trees

"Palm Trees. 1. Corypha Gebanga; 2. Nipa fruiticans." -Lindley, 1853

"Dorystigma. 1. a corolla laid open; 2. calyx and pistil; 3. seed; 4. section of ditto." -Lindley, 1853

Pandanus

"Dorystigma. 1. a corolla laid open; 2. calyx and pistil; 3. seed; 4. section of ditto." -Lindley, 1853

A simple panicle, the branches only once branched.

Panicle

A simple panicle, the branches only once branched.

Diagram of a simple panicle.

Panicle

Diagram of a simple panicle.

The flower of the Papaw, Asimina triloba (Keeler, 1915).

Papaw Flower

The flower of the Papaw, Asimina triloba (Keeler, 1915).

The fruit of the Papaw, Asimina triloba (Keeler, 1915).

Papaw Fruit

The fruit of the Papaw, Asimina triloba (Keeler, 1915).

The papaya or fruit from the Carica Papaya plant.

Papaya

The papaya or fruit from the Carica Papaya plant.

This shows the pendulous strobiles, or fruit, of the Paper Birch, Betula papyrifera, (Keeler, 1915).

Paper Birch Fruit

This shows the pendulous strobiles, or fruit, of the Paper Birch, Betula papyrifera, (Keeler, 1915).

Diagram of papilionaceous flower, with bract below; axis of inflorescence above.

Papilionaceous Flower

Diagram of papilionaceous flower, with bract below; axis of inflorescence above.

"Paris quadrifolia. 1. A transverse section of an ovary; 2. perpendicular section of the ripe fruit; 3. longitudinal section of a seed; 4. an anther." -Lindley, 1853

Herb Paris

"Paris quadrifolia. 1. A transverse section of an ovary; 2. perpendicular section of the ripe fruit;…

A simple flower.

Flower Parts

A simple flower.

A simple flower.

Flower Parts

A simple flower.

A simple flower.

Flower Parts

A simple flower.

The whole stamen of a Lily

Flower Parts

The whole stamen of a Lily

A pistil cut in two.

Flower Parts

A pistil cut in two.

"Passiflora; 1. section of a flower; 2. of its ripe fruit." -Lindley, 1853

Passion Flower

"Passiflora; 1. section of a flower; 2. of its ripe fruit." -Lindley, 1853

A small Passion-flower (<em>passiflora sicyoides</em>), showing the tendrils.

Passion-flower

A small Passion-flower (passiflora sicyoides), showing the tendrils.

A small Passion-flower, with crown of slender threads.

Passion-flower

A small Passion-flower, with crown of slender threads.

The legume of the pea, open.

Pea

The legume of the pea, open.

The flower of False Indigo, in the Pea family.

Pea

The flower of False Indigo, in the Pea family.

The flower of False Indigo, in the Pea family, with the petals removed.

Pea

The flower of False Indigo, in the Pea family, with the petals removed.

The flower of Amorpha, in the Pea family.

Pea

The flower of Amorpha, in the Pea family.

The flower of Amorpha, in the Pea family, with petals removed.

Pea

The flower of Amorpha, in the Pea family, with petals removed.

Side view of a pea blossom.

Pea blossom

Side view of a pea blossom.

Embryo of pea, i.e. a pea with the coats removed; the short and thick caulicle presented to view.

Pea Embryo

Embryo of pea, i.e. a pea with the coats removed; the short and thick caulicle presented to view.

Pea germination: the plumule has developed four or five internodes, bearing single leaves; but the first and second leaves are mere scales, the third begins to serve as foliage; the next more so.

Pea Germination

Pea germination: the plumule has developed four or five internodes, bearing single leaves; but the first…

The female reproductive organ, or pistil, of a pea plant.

Pea Pistil

The female reproductive organ, or pistil, of a pea plant.

Diadelphous stamens of a pea-blossom.

Pea-blossom

Diadelphous stamens of a pea-blossom.

"Fruit of Peach (Prunus persica). En, endocarp; Ep, epicarp; Mes, mesocarp." -Whitney, 1911

Peach

"Fruit of Peach (Prunus persica). En, endocarp; Ep, epicarp; Mes, mesocarp." -Whitney, 1911