"Rhabdia lycioides. 1. its flower; 2. the corolla opened; 3. a cross section of the ovary; 4. a perpendicular section of a seed." -Lindley, 1853

Rhabdia

"Rhabdia lycioides. 1. its flower; 2. the corolla opened; 3. a cross section of the ovary; 4. a perpendicular…

Rhaphides in a cell, from Arisaema, with small cells surrounding.

Rhaphides

Rhaphides in a cell, from Arisaema, with small cells surrounding.

"Rhododendron pumilum; 1. a calyx and pistil, with all stamens removed; 2. an anther; 3. a ripe capsule burst; 4. a vertical section of a seed." -Lindley, 1853

Rhododendron

"Rhododendron pumilum; 1. a calyx and pistil, with all stamens removed; 2. an anther; 3. a ripe capsule…

Some cells from stalk of Rhubarb-plant, three containing chlorophyll; two (one torn across) with rhaphides.

Rhubarb-plant

Some cells from stalk of Rhubarb-plant, three containing chlorophyll; two (one torn across) with rhaphides.

Plant of Riccia natans

Riccia

Plant of Riccia natans

Plant of Riccia natans

Riccia

Plant of Riccia natans

Section of a part of the front, showing two immersed spore-cases, and one emptied space.

Riccia

Section of a part of the front, showing two immersed spore-cases, and one emptied space.

Spore-case torn out, and spores; one figure of the spores united; the other of the four separated.

Riccia

Spore-case torn out, and spores; one figure of the spores united; the other of the four separated.

Section of a grain of Rice, lengthwise, showing embryo outside the albumen, which forms the principal bulk.

Seed of Grain of Rice

Section of a grain of Rice, lengthwise, showing embryo outside the albumen, which forms the principal…

Seed of Ricinus or Castor-oil plant, with caruncle.

Ricinus

Seed of Ricinus or Castor-oil plant, with caruncle.

"The female of Hydrostachys verruculosa. 1. the calyx; 2. the same opened to show the ovary; 3. a seed; 4. a vertical section of it." -Lindley, 1853

Riverweed

"The female of Hydrostachys verruculosa. 1. the calyx; 2. the same opened to show the ovary; 3. a seed;…

Section of seed of Rock Rose, Helianthemum Canadense; orthotropus, with curved embryo in the albumen.

Seed of Rock Rose

Section of seed of Rock Rose, Helianthemum Canadense; orthotropus, with curved embryo in the albumen.

"Root grafting in its different stages. a, Scion cut for insertion; b, stock prepared to receive the scion; c, stock and scion untied; d, the same tied up with waxed cord." -Gager, 1916

Root Grafting

"Root grafting in its different stages. a, Scion cut for insertion; b, stock prepared to receive the…

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different plants in such a way that they shall unite and become an organic unity. The rooted plant which is to receive the graft is called the 'stock'; the cutting which is to be applied to the stock, and to obtain its nourishment from it, is called the 'scion'. This illustration shows the Root method of grafting.

Root Grafting

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different…

"Budding. a, Budstick; b, T-shaped cut in bark of stock; c, bud ready for insertion; d, stock with bud inserted; e, the same tied up with raffia." -Gager, 1916

Budding Grafting

"Budding. a, Budstick; b, T-shaped cut in bark of stock; c, bud ready for insertion; d, stock with bud…

"Cleft grafting (Herbaceous). a, Scion ready for insertion; b, stock; c, stock and scion unted; d, the same tied up with raffia; e, cleft grafting (woody). Stock with two scions." -Gager, 1916

Cleft Grafting

"Cleft grafting (Herbaceous). a, Scion ready for insertion; b, stock; c, stock and scion unted; d, the…

"Saddle grafting. a, Scion; b, stock; c, scion and stock joined." -Gager, 1916

Saddle Grafting

"Saddle grafting. a, Scion; b, stock; c, scion and stock joined." -Gager, 1916

Anastatica hierochuntina or the Rose of Jericho is member of the Brassicaceae family.

Rose of Jericho

Anastatica hierochuntina or the Rose of Jericho is member of the Brassicaceae family.

The Florida Rosemary: "Ceratiola ericoides. 1. a male flower; 2. a female; 3. a view of the ovary, with its side removed to show the ovules; 4. ripe fruit; 5. section across a seed." -Lindley, 1853

Florida Rosemary

The Florida Rosemary: "Ceratiola ericoides. 1. a male flower; 2. a female; 3. a view of the ovary, with…

A depiction of the upper portion of the Pyrethrum roseum.

Pyrethrum Roseum

A depiction of the upper portion of the Pyrethrum roseum.

"Roxburghia gloriosoides; 1. the fruit; 2. a seed; 3. the same divided longitudinally." -Lindley, 1853

Roxburghia

"Roxburghia gloriosoides; 1. the fruit; 2. a seed; 3. the same divided longitudinally." -Lindley, 1853

Leaf of Ruscus, or Butcher's Broom

Ruscus

Leaf of Ruscus, or Butcher's Broom

"Juncus acutiflorus; 1. a flower; 2. the pistil; 3. a perpendicular section of the ovary; 4. seeds; 5. a seed germinating." -Lindley, 1853

Sharp-Flowered Rush

"Juncus acutiflorus; 1. a flower; 2. the pistil; 3. a perpendicular section of the ovary; 4. seeds;…

"Ruyschia amazonica. 1. a calyx and pistil; 2. a section of the ovary; 3. a seed; 4. the same, with a portion of the testa torn open to show the cotyledons." -Lindley, 1853

Ruyschia

"Ruyschia amazonica. 1. a calyx and pistil; 2. a section of the ovary; 3. a seed; 4. the same, with…

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks that give it a marbled appearance. They are usually found in Europe.

Pulmonaria Saccharata

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks…

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different plants in such a way that they shall unite and become an organic unity. The rooted plant which is to receive the graft is called the 'stock'; the cutting which is to be applied to the stock, and to obtain its nourishment from it, is called the 'scion'. This illustration shows the Saddle method of grafting.

Saddle Grafting

Grafting is a horticultural operation which consists in placing together the two cut surfaces of different…

"1. Salva officinalis; 2. its corolla laid open; 3. its pistil; 4. the pistil and lower part of the flower cut open; 5. perpendicular section of a nut." -Lindley, 1853

Common Sage

"1. Salva officinalis; 2. its corolla laid open; 3. its pistil; 4. the pistil and lower part of the…

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

Pteris Sagittifolia

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

Cycas revoluta or sago cycad is known as the king sago palm but is not a palm; it is a cycad.

Sago Cycad

Cycas revoluta or sago cycad is known as the king sago palm but is not a palm; it is a cycad.

"Cycas circinalis; 1. a portion of a female frond; 2. section of the naked ovule; 3. ripe fruit; 4. embryo." -Lindley, 1853

Queen Sago

"Cycas circinalis; 1. a portion of a female frond; 2. section of the naked ovule; 3. ripe fruit; 4.…

A view on upper Saint John's River in Florida.

Saint John's River

A view on upper Saint John's River in Florida.

"3. a flower of Salsola Kali; 4. its ripe fruit; 5. the same magnified, with a portion of the leafy dilated calyx torn away; 6. it embryo." -Lindley, 1853

Prickly Saltwort

"3. a flower of Salsola Kali; 4. its ripe fruit; 5. the same magnified, with a portion of the leafy…

"Salvertia convallariodora. 1. an expanded flower; 2. a portion of the calyx, with the stamens; 3. a pistil; 4. a transverse section of the ovary." -Lindley, 1853

Salvertia

"Salvertia convallariodora. 1. an expanded flower; 2. a portion of the calyx, with the stamens; 3. a…

This is a classification of a type of fruit.

Samara

This is a classification of a type of fruit.

The fruit of the Sandbox Tree (Hura crepitans).

Sandbox Tree Fruit

The fruit of the Sandbox Tree (Hura crepitans).

Plan of a one-celled ovary of three carpel-leaves, with parietal placentae, cut across below, where it is complete; the upper part showing the top of the three leaves it is composed of, approaching, but not united.

Sandwort

Plan of a one-celled ovary of three carpel-leaves, with parietal placentae, cut across below, where…

Sarcocolla vulgaris, a flowering plant from the Penaeaceae family.

Sarcocolla

Sarcocolla vulgaris, a flowering plant from the Penaeaceae family.

Leaf of Sarracenia purpurea, entire, and another with the upper part cut off.

Sarracenia Purpurea

Leaf of Sarracenia purpurea, entire, and another with the upper part cut off.

A type of herb noted for it's flavor.

Sarsaparilla

A type of herb noted for it's flavor.

"Smilax glycyphylla; 1. a male flower seen from above; 2. a female flower; 3. a transverse section of an ovary; 4. a seed; 5. a section of a seed, showing the embryo." -Lindley, 1853

Sweet Sarsaparilla

"Smilax glycyphylla; 1. a male flower seen from above; 2. a female flower; 3. a transverse section of…

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

Saururus

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

"Lavradia Vellozii. 1. an expanded flower; 2. the stamens with exterior petaloid scales; 3. a seed; 4. a section of it." -Lindley, 1853

Sauvagesia

"Lavradia Vellozii. 1. an expanded flower; 2. the stamens with exterior petaloid scales; 3. a seed;…

Also known as Nematus ribesii. A common pest of gooseberries.

Gooseberry Sawfly

Also known as Nematus ribesii. A common pest of gooseberries.

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length. They are usually found in New Zealand.

Pteris Scaberula

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length.…

"Scabiosa atropurpurea. 1. a flower; 2. the involucre opened to show the ovary and calyx; 3. perpendicular section of fruit." -Lindley, 1853

Sweet Scabious

"Scabiosa atropurpurea. 1. a flower; 2. the involucre opened to show the ovary and calyx; 3. perpendicular…

A variety of leaves with scales: "a, the scale-like leaves of the stem of Lathraea squamaria (toothwort); b, the cone with the scales of Cupressus sempervirens (Mediterranean Cypress); c, the imbricate scale-like bract of the spike of Cyperus longus (common galingale)." -Whitney, 1911

Scaled Leaves

A variety of leaves with scales: "a, the scale-like leaves of the stem of Lathraea squamaria (toothwort);…

A scape is a flowering, leafless stem; shown here on two different plants. "1. Wild hyacinth (Scilla nonscripta). 2. Oxlip (Primula elatior). s, s, scapes." -Whitney, 1911

Scapes

A scape is a flowering, leafless stem; shown here on two different plants. "1. Wild hyacinth (Scilla…

The spore-case of Schizaea dichotoma, a fern from the Polypodiaceae family.

Schizaea

The spore-case of Schizaea dichotoma, a fern from the Polypodiaceae family.

A very small and simple-leaved Fern.

Schizaea pusilla

A very small and simple-leaved Fern.

One of the lobes of its fruit-bearing portion, bearing two rows of spore-cases.

Schizea Pusilla

One of the lobes of its fruit-bearing portion, bearing two rows of spore-cases.

Spore-case of the Schizea Pusilla, detached, opening lengthwise.

Schizea Pusilla

Spore-case of the Schizea Pusilla, detached, opening lengthwise.

This is a classification of a type of fruit.

Schizocarp (Carcerule) of Mallow

This is a classification of a type of fruit.

"Schubertia multiflora. 1. the anthers united to the stigma; 2. the ovary and stigma, from the latter of which the pollen masses have been removed; 3. a pair of pendulous pollen masses, with their gland; 4. the ripe follicles." -Lindley, 1853

Schubertia

"Schubertia multiflora. 1. the anthers united to the stigma; 2. the ovary and stigma, from the latter…

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found in Asia and the Middle East. The leaves grow in twos, and are strap-like.

Puschkinia Scilloides

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found…

Diagram of a scorpioid cyme, with opposite leaves or bracts.

Scorpioid Cyme

Diagram of a scorpioid cyme, with opposite leaves or bracts.

Section of a flower moderately enlarged, showing a part of the petals and stamens, all five styles, and a section of ovary with two ovules or rudimentary seeds.

Section of Flax-flower

Section of a flower moderately enlarged, showing a part of the petals and stamens, all five styles,…

"Uricle or addiional glumes of Carex rivularis" (Shining Flatsedge) -Lindley, 1853

Shining Flatsedge

"Uricle or addiional glumes of Carex rivularis" (Shining Flatsedge) -Lindley, 1853

3, The Fox Sedge (Carex vulpinoidea) and 4, the Fringed Sedge (Carex crinita).

Fox Sedge and Fringed Sedge

3, The Fox Sedge (Carex vulpinoidea) and 4, the Fringed Sedge (Carex crinita).

The Northern Singlespike Sedge (Carex scirpoidea): 1, male; 2, female.

Northern Singlespike

The Northern Singlespike Sedge (Carex scirpoidea): 1, male; 2, female.

Parts of the same, two of each kind, separated and displayed; the torus or receptacle in the centre; <em>a</em> a sepal; <em>b</em>, a petal; <em>c</em>, a stamen <em>d</em>, a pistil.

Sedum Ternatum

Parts of the same, two of each kind, separated and displayed; the torus or receptacle in the centre;…