lowest flowers with only carpels, or with only stamens.

Sagittaria

lowest flowers with only carpels, or with only stamens.

All flowers with stamens and carpels.

Echinodorus

All flowers with stamens and carpels.

Upper flowers with stamens only.

Lophotocarpus

Upper flowers with stamens only.

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic cat, lions, tigers, panthers, leopards, and lynxes. The felidæ are found in all parts of the world except Australia. "—(Charles Leonard-Stuart, 1911)

Tiger Head

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic…

Leaves floating flat on surfacel inflourescences minute and inconspicuos.

Hydrochloa

Leaves floating flat on surfacel inflourescences minute and inconspicuos.

Leaves not flat-floating; inflourescences large and conspicuous.

Paspalum

Leaves not flat-floating; inflourescences large and conspicuous.

Inflourescences not expanded; the lower pistillate portion breaking up into bony, bead-like joints.

Tripsacum

Inflourescences not expanded; the lower pistillate portion breaking up into bony, bead-like joints.

Pistullate spikelets borne above staminate in inflorescence; leaves not cutting.

Zizania

Pistullate spikelets borne above staminate in inflorescence; leaves not cutting.

Pistullate and staminate spikelets intermixed; leaves with scabrous, cutting margins.

Zizaniopsis

Pistullate and staminate spikelets intermixed; leaves with scabrous, cutting margins.

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic cat, lions, tigers, panthers, leopards, and lynxes. The felidæ are found in all parts of the world except Australia. "—(Charles Leonard-Stuart, 1911)

Partial Tiger Tongue

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic…

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic cat, lions, tigers, panthers, leopards, and lynxes. The felidæ are found in all parts of the world except Australia. "—(Charles Leonard-Stuart, 1911)

Tiger Paw

"Felidæ or Felinæ is the cat tribe, a family of carnivorous quadrupeds, including the domestic…

"The Fern is a leafy plant springing from a rhizome, which creeps below or on the surface of the ground or rises into the air like the trunk of a tree. This trunk does not taper, but is of equal diameter at both ends. Some tree ferns reach 75 feet high."—(Charles Leonard-Stuart, 1911)

Giant Tree Fern

"The Fern is a leafy plant springing from a rhizome, which creeps below or on the surface of the ground…

Plants not woody.

Arundinaria

Plants not woody.

Inflourescence made up of bony, bead-like joints.

Manisuris

Inflourescence made up of bony, bead-like joints.

Inflourescence not plum-like nor feathery; panicle obviously branched.

Echinochloa

Inflourescence not plum-like nor feathery; panicle obviously branched.

Spikelets spineless (awnless) but subtended by several bristles; panicle often nodding.

Setaria

Spikelets spineless (awnless) but subtended by several bristles; panicle often nodding.

Spikelets long-spiny (long-awned), with or withuot hairs at base; panicle not nodding.

Erianthus

Spikelets long-spiny (long-awned), with or withuot hairs at base; panicle not nodding.

Spikelets 6mm long or more; grass growing in large clumps.

Spartina

Spikelets 6mm long or more; grass growing in large clumps.

Spikelets arranged along rachis with back of fruit away from rachis; rachis 3-sided.

Axonopus

Spikelets arranged along rachis with back of fruit away from rachis; rachis 3-sided.

Spikelets with several florets.

Glyceria

Spikelets with several florets.

Spikelets very strongly flattened.

Leersia

Spikelets very strongly flattened.

Spikelets inflated or gibbous at base.

Sacciolepis

Spikelets inflated or gibbous at base.

Spikelets not inflated as base.

Panicum

Spikelets not inflated as base.

Stem topped by 1 to several spikelets; leaf-sheath distributed along the stem.

Fuirena

Stem topped by 1 to several spikelets; leaf-sheath distributed along the stem.

Spikelets subtended by conspicuous white or partly white bracts.

Dichromena

Spikelets subtended by conspicuous white or partly white bracts.

Stem round, hollow; spikelets borne in axillary as well as terminal clusters.

Dulichium

Stem round, hollow; spikelets borne in axillary as well as terminal clusters.

Spikelets with more than 2 scales enclosing achenes; no periath-bristles present.

Psilocarya

Spikelets with more than 2 scales enclosing achenes; no periath-bristles present.

Spikelets with only 1 or 2 scales enclosing acenes; perianth-bristles usually present.

Rhynchospora

Spikelets with only 1 or 2 scales enclosing acenes; perianth-bristles usually present.

Spikelets with the uppermost scale only enclosing an achene; our commonest species has saw-edged. cutting leaves.

Cladium

Spikelets with the uppermost scale only enclosing an achene; our commonest species has saw-edged. cutting…

Each scale of spikelet bearing a bristle or awn near the apex.

Fuirena

Each scale of spikelet bearing a bristle or awn near the apex.

Style swollen at base but the swollen base not persistent on achene.

Fimbristylis

Style swollen at base but the swollen base not persistent on achene.

Style not swollen as base.

Scirpus

Style not swollen as base.

Achene exposed.

Scleria

Achene exposed.

Achene enclosed in a sac.

Carex

Achene enclosed in a sac.

"Fossil Plant from Coal Measures of Pennsylvania."—(Charles Leonard-Stuart, 1911)

Fossil Plant

"Fossil Plant from Coal Measures of Pennsylvania."—(Charles Leonard-Stuart, 1911)

"The Goosander is a web-footed bird in the duck family. The adult male, which measures 26 inches in length, has the head and upper part of the neck of a rich shining green, the feathers of the crown and back of the head elongated, the back black and gray, the wings black and white, the breast and belly of a delicate reddish-buff color. The bill, legs, and feet are orange-red. the female, which is rather smaller, has the head reddish-brown, with a less decided tuft than the male, and much grayer plumage. The goosander is a native of the Arctic regions, extending into the temperate parts of America, Europe and Asia."—(Charles Leonard-Stuart, 1911)

Goosander

"The Goosander is a web-footed bird in the duck family. The adult male, which measures 26 inches in…

"The Goosander is a web-footed bird in the duck family. The adult male, which measures 26 inches in length, has the head and upper part of the neck of a rich shining green, the feathers of the crown and back of the head elongated, the back black and gray, the wings black and white, the breast and belly of a delicate reddish-buff color. The bill, legs, and feet are orange-red. the female, which is rather smaller, has the head reddish-brown, with a less decided tuft than the male, and much grayer plumage. The goosander is a native of the Arctic regions, extending into the temperate parts of America, Europe and Asia."—(Charles Leonard-Stuart, 1911)

Goosander

"The Goosander is a web-footed bird in the duck family. The adult male, which measures 26 inches in…

"Thorn Apple is a genus of plants. The common thorn apple is an annual plant, with smooth stem and leaves, white flowers, and erect prickly capsules, a native of the East Indies, but now often met with in North America. A variety with pale violet flowers and purplish violet stem is frequently cultivated in gardens as an ornamental plant."—(Charles Leonard-Stuart, 1911)

Thorn Apple

"Thorn Apple is a genus of plants. The common thorn apple is an annual plant, with smooth stem and leaves,…

"Thorn Apple is a genus of plants. The common thorn apple is an annual plant, with smooth stem and leaves, white flowers, and erect prickly capsules, a native of the East Indies, but now often met with in North America. A variety with pale violet flowers and purplish violet stem is frequently cultivated in gardens as an ornamental plant."—(Charles Leonard-Stuart, 1911)

Thorn Apple Bud

"Thorn Apple is a genus of plants. The common thorn apple is an annual plant, with smooth stem and leaves,…

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several species, all natives of South America, chiefly on the Peruvian side. In the United States and other countries in which the summer is warm and prolonged, it has long been cultivated for the excellent qualities of the fruit as an article of diet. Though belonging to a natural order of plants usually regarded with suspicion on account of the powerfully poisonous properties of many of the species comprised in it, it is now recognized as one of the most important and valuable of vegetables grown for human food."—(Charles Leonard-Stuart, 1911)

Tomato Plant

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several…

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several species, all natives of South America, chiefly on the Peruvian side. In the United States and other countries in which the summer is warm and prolonged, it has long been cultivated for the excellent qualities of the fruit as an article of diet. Though belonging to a natural order of plants usually regarded with suspicion on account of the powerfully poisonous properties of many of the species comprised in it, it is now recognized as one of the most important and valuable of vegetables grown for human food."—(Charles Leonard-Stuart, 1911)

Tomato

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several…

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several species, all natives of South America, chiefly on the Peruvian side. In the United States and other countries in which the summer is warm and prolonged, it has long been cultivated for the excellent qualities of the fruit as an article of diet. Though belonging to a natural order of plants usually regarded with suspicion on account of the powerfully poisonous properties of many of the species comprised in it, it is now recognized as one of the most important and valuable of vegetables grown for human food."—(Charles Leonard-Stuart, 1911)

Tomato

"Tomato, or Love Apple, is a plant of the natural order Solanaceæ. It is one of a genus of several…

"Trichina Spiralis is the name given to a peculiar nematoid worm which inhabits the muscles, usually of the pig. The viviparous females, originally living in rats, being about eight days after entering the intestines of their second host, a pig, to give birth to the larvæ, which pass into various parts of the body, especially the muscles, where they coil up in a sack, or cyst, which eventually becomes calcareous and whitish. When pork thus infected is eaten the worms are set free in the stomach of their third host (man), and in three or four days there become sexually mature, each female being capable of producing 1,000 young."—(Charles Leonard-Stuart, 1911)

Trichina Spiralis

"Trichina Spiralis is the name given to a peculiar nematoid worm which inhabits the muscles, usually…

"Trichina Spiralis is the name given to a peculiar nematoid worm which inhabits the muscles, usually of the pig. The viviparous females, originally living in rats, being about eight days after entering the intestines of their second host, a pig, to give birth to the larvæ, which pass into various parts of the body, especially the muscles, where they coil up in a sack, or cyst, which eventually becomes calcareous and whitish. When pork thus infected is eaten the worms are set free in the stomach of their third host (man), and in three or four days there become sexually mature, each female being capable of producing 1,000 young."—(Charles Leonard-Stuart, 1911)

Trichina Spiralis

"Trichina Spiralis is the name given to a peculiar nematoid worm which inhabits the muscles, usually…

"Tuberose (Polianthus) is a genus of plants of the natural order Liliaceæ. The plant is in high esteem for the beauty and fragrance of its flowers, the odor of which is most powerful after sunset. The fading flowers emit, in certain states of the atmosphere, an electric light and sparks. The native country of the tuberose is Mexico. They are very extensively grown by American and British florists, who, by planting the roots successionally, manage to keep up a supply of flowers at all seasons. There are several varieties."—(Charles Leonard-Stuart, 1911)

Double Tuberose

"Tuberose (Polianthus) is a genus of plants of the natural order Liliaceæ. The plant is in high…

"Tussock Grass is a large grass, same genus with the cock's-foot grass of the United States; native of the Falkland Islands, Fuegia, and South Patagonia. It grows in great tufts or tussocks sometimes five or six feet in height, the long tapering leaves hanging over in graceful curves. The plant is a useful food for cattle."—(Charles Leonard-Stuart, 1911)

Tussock Grass

"Tussock Grass is a large grass, same genus with the cock's-foot grass of the United States; native…

"Valerian is an order of herbs or rarely shrubs belonging to the division of monopetalous dicotyledons having the stamens arising from the petals. The order is distinguished from its congeners by the opposite leaves; small irregular flowers. It contains 12 genera and about 190 species, distributed through Northwestern America, Europe, Northern Africa, and temperate Asia– unknown in Australia, and only one species South African. It has a penetrating odor, and a bitter, acrid, somewhat aromatic taste; when distilled with water it yields a volatile oil and valerianic acid. Cats have a strange liking for the odor, and it exercises a remarkable intoxicating or stimulating power over them; the plant is sometimes called cats' valerian. It is often used to tempt cats to an unhappy fate."—(Charles Leonard-Stuart, 1911)

Valerian

"Valerian is an order of herbs or rarely shrubs belonging to the division of monopetalous dicotyledons…

"Vetch, Fetch, Fitch, and Tare are terms variously used to indicate the fodder plant. This genus consists of about 100 species of climbing or diffuse herbs, distributed through temperate regions of the Northern Hemisphere and South America. It is one of the best fodder plants, but is only of one or two years' duration; it is important also for green manure, and as a companion crop with clovers. The practice of sowing it along with oats or barley is strongly recommended, insuring a greater bulk of produce, and preventing the crop from massing and rotting in wet weather."—(Charles Leonard-Stuart, 1911)

Vetch Plant

"Vetch, Fetch, Fitch, and Tare are terms variously used to indicate the fodder plant. This genus consists…

"Vetch, Fetch, Fitch, and Tare are terms variously used to indicate the fodder plant. This genus consists of about 100 species of climbing or diffuse herbs, distributed through temperate regions of the Northern Hemisphere and South America. It is one of the best fodder plants, but is only of one or two years' duration; it is important also for green manure, and as a companion crop with clovers. The practice of sowing it along with oats or barley is strongly recommended, insuring a greater bulk of produce, and preventing the crop from massing and rotting in wet weather."—(Charles Leonard-Stuart, 1911)

Vetch Seed Pod

"Vetch, Fetch, Fitch, and Tare are terms variously used to indicate the fodder plant. This genus consists…

"Viper's Bugloss is a genus of plants. The species are large herbaceous plants or shrubs, rough with tubercles and hairs. Their flowers are often very beautiful. the common viper's bugloss, a large annual plant, is a native of Great Britain and of most parts of Europe growing in dry places, not infrequently in cornfields. Its flowers are at first reddish, and afterward blue. It derives its name, viper's bugloss, from spots on its stem, which somehat resemble those of the viper, and the property of healing viper's bites was therefore ascribed to it. Other herbaceous species are found in North and South America, and other parts of the world. Shrubby species are found chiefly in the Canaries and South Africa."—(Charles Leonard-Stuart, 1911)

Viper's Bugloss

"Viper's Bugloss is a genus of plants. The species are large herbaceous plants or shrubs, rough with…

"Walnut is a genus comprising seven or eight species of beautiful trees. The common walnut is a native of Persia and the Himalayas, but has long been cultivated in all parts of the S. of Europe. The date of its introduction is unknown, but it was certainly cultivated by the Romans in the reign of Tiberius. It is a lofty tree of 60 to 90 feet, with large spreading branches. The leaves have two to four pairs of leaflets, and a terminal one."—(Charles Leonard-Stuart, 1911)

Walnut

"Walnut is a genus comprising seven or eight species of beautiful trees. The common walnut is a native…

"Wapiti is the name given by the North American Indians to an animal, a native of North America, ranging from the Carolinas to lat. 56-57 degrees N. It is closely allied to but considerably larger than the stag, standing about 54 inches at the shoulder; yellowish brown on upper parts; sides gray, long coarse hair in front of neck, like a dewlap; antlers large, brow-tine duplicated. It frequents low grounds, or woody tracts near savannahs or marshes. The venison is of little value, as it is coarse and dry; but the hide makes excellent leather. It is called also, but erroneously, the elk and gray moose."—(Charles Leonard-Stuart, 1911)

Wapiti

"Wapiti is the name given by the North American Indians to an animal, a native of North America, ranging…

"The Water Lily is an exogenous aquatic plant including eight genera, and all possessing submerged root stocks. They are found in all temperate climates, and attain great size in the tropics. The white water lily is the familiar flower of ponds and placid streams throughout North America, its large and chaste flowers claiming precedence for beauty among the indigenous flora."—(Charles Leonard-Stuart, 1911)

White Water Lily

"The Water Lily is an exogenous aquatic plant including eight genera, and all possessing submerged root…

"Wigeon is one of the most popular birds with the American sportsman. Length about eighteen inches; the male has the forehead and top of head white, cheeks and hinged part of the neck reddish-chestnut, upper parts grayish-white, irregularly zigzagged with black, wing coverts white tipped with black, primaries dark brown, speculum green, edged with black; throat rufous, breast and belly white; the female has sober plumage of various shades of brown. The wigeon is one of the commonest ducks of the extreme N. of Europe, frequenting grassy swamps, lakes, and rivers, and feeding in the daytime, chiefly on aquatic vegetation. The American wigeon is larger than the European or common wigeon, and has the upper parts finely waved transversely with black and reddish-brown, top of head and under parts white. It breeds chiefly in the N. parts of America and is common in winter on the coasts of the United States and in the rice fields. The flesh of both species is esteemed for the table, and they are hunted both for food and for sport."—(Charles Leonard-Stuart, 1911)

Wigeon

"Wigeon is one of the most popular birds with the American sportsman. Length about eighteen inches;…

"Wren is a genus of birds, having a slender, slightly curved, and pointed bill; the wings very short and rounded; the tail short, and carried erect; the legs slender, and rather long. Their plumage is generally dull. They are abundant in the neotropical region, less common in the nearctic, palæarctic, and parts of the Oriental regions. They live on or near the ground, seeking for insects and worms among low brushes, and in other similar situations. The common or European wren is found in all parts of Erurope, and in Morocco and Algeria, and in Asia Minor and Northern Persia. The common wren is more abundant in the N. than in the central and S. parts of Europe. It frequents gardens, hedges, and thickets. Its flight is not long sustained; it merely flits from bush to bush, or from one stone to another, with very rapid motion of the wings. It sometimes ascends trees, nearly in the manner of creepers."—(Charles Leonard-Stuart, 1911)

Wren

"Wren is a genus of birds, having a slender, slightly curved, and pointed bill; the wings very short…

"A, columnar cells found lining various parts of the intestines (called <em>columnar epthelium</em>); B, cells of a fusiform or spindle shape found in the loose tissue under the skin and in other parts (called <em>connective-tissue cells</em>); C, cell having many processes or projections - such are found in some kinds of connective tissue; D, primitive cells composed of protoplasm with nucleus, and having no cell wall." &mdash; Blaisedell, 1904

Various forms of cells

"A, columnar cells found lining various parts of the intestines (called columnar epthelium);…

"When a bone is broken, blood trickles out between the injured parts, and afterwards gives place to a sticky, watery fluid, which gradually becomes thicker, like a syrup or jelly. This is slowly replaced by a new bone structure and forms a kind of cement to gold together the broken ends." — Blaisedell, 1904

Broken Radius

"When a bone is broken, blood trickles out between the injured parts, and afterwards gives place to…

"When a bone is broken, blood trickles out between the incjured parts, and afterwards gives place to a sticky, watery fluid, which gradually becomes thicker, like a syrup or jelly. This is slowly replaced by a new bone structure and forms a kind of cement to gold together the broken ends." — Blaisedell, 1904

Broken Clavicle

"When a bone is broken, blood trickles out between the incjured parts, and afterwards gives place to…

"When a bone is broken, blood trickles out between the injured parts, and afterwards gives place to a sticky, watery fluid, which gradually becomes thicker, like a syrup or jelly. This is slowly replaced by a new bone structure and forms a kind of cement to gold together the broken ends." — Blaisedell, 1904

Broken Tibia

"When a bone is broken, blood trickles out between the injured parts, and afterwards gives place to…

"In nearly every tissue of the body there is a marvelous network of vessels, precisely like the lacteals, known as the <em>lymphatics</em>. They seem to start out of the part in which they are found, like the rootlets of a plant in the soil. The tiny roots join together and make larger roots. They carry a fluid called <em>lymph</em>, very much like blood without the red corpuscles. It is to be remembered that the lacteals are really the lymphatics which begin in the villi of the small intestine." — Blaisedell, 1904

Superficial Lymphatics of the foot

"In nearly every tissue of the body there is a marvelous network of vessels, precisely like the lacteals,…