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The flower of the agave densiflora is a yellowish red color and about two inches long. Thirty to forty leaves make up a stemless rosette at the base of the plant. The leaves are bright green when mature.

Agave Densiflora Flower

The flower of the agave densiflora is a yellowish red color and about two inches long. Thirty to forty…

The agave yuccaefolia flower is greenish yellow and grows either solitary or in pairs. Twenty to forty leaves form a rosette at the base. This variety of agave is found in Mexico.

Agave Yuccaefolia

The agave yuccaefolia flower is greenish yellow and grows either solitary or in pairs. Twenty to forty…

The flowers of alpinia nutans are pink and smell sweet like ginger. The leaves are narrow and taper toward the base of the plant.

Alpinia Nutans and the Individual Flower

The flowers of alpinia nutans are pink and smell sweet like ginger. The leaves are narrow and taper…

Amaranthus tricolor is a purplish red color from the base to the middle of the leaf. The upper end of the leaf has a large spot of bright yellow.

Amaranthus Tricolor

Amaranthus tricolor is a purplish red color from the base to the middle of the leaf. The upper end of…

Anchusa capensis has blue flowers and a hairy stem. The leaves are linear and taper towards the base.

Anchusa Capensis Flower

Anchusa capensis has blue flowers and a hairy stem. The leaves are linear and taper towards the base.

The flowers of anchusa sempervirens are a rich blue and grow in short spikes at the leafy base. The leaves are placed lower on long stalks.

Anchusa Sempervirens Flowers

The flowers of anchusa sempervirens are a rich blue and grow in short spikes at the leafy base. The…

The flowers of androsace laggeri are pink and are supported at the base of the stem. These flowers grow in the Pyrennes mountain range.

Androsace Laggeri

The flowers of androsace laggeri are pink and are supported at the base of the stem. These flowers grow…

The fronds of the asplenium fontanum fern are oblong and taper toward the base. The fronds are three to six inches long.

Asplenium Fontanum

The fronds of the asplenium fontanum fern are oblong and taper toward the base. The fronds are three…

Berberidopsis corallina is a hardy, evergreen shrub. The flowers are crimson with a leafy base. This shrub greatly resembles barberry.

Berberidopsis Corallina

Berberidopsis corallina is a hardy, evergreen shrub. The flowers are crimson with a leafy base. This…

This is a vertical section of a cylinder boiler. Part A shows the waterway. B is the ashpit inside the cast base of the boiler. C is the firebars. D is the flue. E is the domed top. F is the feeing lid, G is the flower and H is the return pipe sockets.

Vertical Section of a Cylinder Boiler

This is a vertical section of a cylinder boiler. Part A shows the waterway. B is the ashpit inside the…

The common name of botrychium lunaria is common moonwort. The capsules are attached at the base. The leaves are wedge or fan shaped and grow on both sides of the stem.

Habit, Capsule, and Spores of Botrychium Lunaria

The common name of botrychium lunaria is common moonwort. The capsules are attached at the base. The…

Caladium maculatum leaves are heart shaped at the base. The leaves are spotted with clear white. This plant is found in South America.

Caladium Maculatum

Caladium maculatum leaves are heart shaped at the base. The leaves are spotted with clear white. This…

Calochortus is commonly known as the mariposa lily. The flowers are large and white with a yellow base. The flowers are deeply stained with crimson and each segment is blotched with crimson.

Flowers and Leaves of Calochortus Venustus

Calochortus is commonly known as the mariposa lily. The flowers are large and white with a yellow base.…

Campanula macrostyla flowers are a dull purple with violet colored veins. The stalks are stout and hairy toward the base. The plant grows between one and two feet high.

Campanula Macrostyla

Campanula macrostyla flowers are a dull purple with violet colored veins. The stalks are stout and hairy…

The common name of campanula pyramidalis is chimney bell-flower. There are numerous flowers, pale blue or white with a dark base.

Habit and Flower of Campanula Pyramidalis

The common name of campanula pyramidalis is chimney bell-flower. There are numerous flowers, pale blue…

Chimney Bell-Flower is the common name of campanula pyramidalis. The flowers are pale blue or white with a dark base, The plant grows between four and five feet tall.

Flowering Branch of Campanula Pyramidalis

Chimney Bell-Flower is the common name of campanula pyramidalis. The flowers are pale blue or white…

Eucomis punctata is native to South Africa. The flowers are green and brown. The leaves are oblong and spread from the base.

Eucomis Punctata

Eucomis punctata is native to South Africa. The flowers are green and brown. The leaves are oblong and…

The common name of galanthus is snowdrop. The flowers of galanthus elwesii are white with green spots at the base. The plant grows between six and twelve inches tall.

Flowers of Galanthus Elwesii

The common name of galanthus is snowdrop. The flowers of galanthus elwesii are white with green spots…

The common name of galanthus nivalis imperati is the common snowdrop. This a large form of galanthus nivalis. The outer segments of the flower are very abrupt and narrow at the base.

Flowers of Galanthus Nivalis Imperati

The common name of galanthus nivalis imperati is the common snowdrop. This a large form of galanthus…

The Gooseberry or Magpie moth is often mistaken for a butterfly. The moth usually appears in the middle of the summer and continues until autumn. The wings of the moth have a white background with patches of black. At the base of the forewings is a yellow patch and near the middle there is a band of yellow between two rows of black spots.

Gooseberry or Magpie Moth

The Gooseberry or Magpie moth is often mistaken for a butterfly. The moth usually appears in the middle…

The flowers of griffinia hyacinthia have blue upper segments at the top and are white towards the base. The umbel has nine to ten flowers.

Griffinia Hyacinthia

The flowers of griffinia hyacinthia have blue upper segments at the top and are white towards the base.…

The common name of helianthemum guttatum is sun rose. The guttatum variety has yellow flowers with red spots at the base of each petal. The shrub grows to be six inches tall.

Flowering Branch of Helianthemum Guttatum

The common name of helianthemum guttatum is sun rose. The guttatum variety has yellow flowers with red…

Lilium roseum is a variety of lily with large, lilac flowers. The flowers bloom in April. The leaves are crowded at the base of the stem.

Habit and Detached Portion of Raceme of Lilium Roseum

Lilium roseum is a variety of lily with large, lilac flowers. The flowers bloom in April. The leaves…

The leaves of macrozamia spiralis are a bright, shining green except for at the base. The leaves at the base are ivory white forming a broad central white stripe.

Macrozamia Spiralis

The leaves of macrozamia spiralis are a bright, shining green except for at the base. The leaves at…

The flowers have mathiola tricuspidata are bright lilac. The flowers are a lighter color towards the base of each petal. The flowers bloom in the summer.

Flowering Branch of Mathiola Tricuspidata

The flowers have mathiola tricuspidata are bright lilac. The flowers are a lighter color towards the…

The common name of melianthus is honey flower. The flowers are green at the base. The petals and sepals are orange yellow within and a large red spot marked on the outside.

Flowers and Leaf of Melianthus Comosus

The common name of melianthus is honey flower. The flowers are green at the base. The petals and sepals…

Miltonia phalaenopsis flowers are pure white and about two inches across. A large portion of the center of lip is a rich purplish crimson with a yellow base. The flowers bloom in May.

Miltonia Phalaenopsis

Miltonia phalaenopsis flowers are pure white and about two inches across. A large portion of the center…

Miltonia spectabilis flowers have pure white sepals and petals tinged with rose at the base. The lip is rosy violet tinged with white. The flowers are large, three to four inches across. The flowers bloom in autumn.

Flower of Miltonia Spectabilis

Miltonia spectabilis flowers have pure white sepals and petals tinged with rose at the base. The lip…

Musa superba is a variety of the banana or plantain tree. This tree has a pseudo-stem swollen at the base. The tree grows fourteen feet tall.

Flowering Plant and Detached Flower of Musa Superba

Musa superba is a variety of the banana or plantain tree. This tree has a pseudo-stem swollen at the…

Ridges are made on a hard piece of ground, and are about three feet wide at the base. The two sides slope somewhat steeply to the top.

Ridge Mushroom Bed

Ridges are made on a hard piece of ground, and are about three feet wide at the base. The two sides…

Nothochlaena nivea hookeri ferns have dilated segments and leaves attached at the base.

Frond of Nothochlaena Nivea Hookeri

Nothochlaena nivea hookeri ferns have dilated segments and leaves attached at the base.

Odontoglossum cervantesii flowers are one to two inches across. The flowers are rosy lilac barred at the base with crimson brown. Each spike is six inches high with three to five flowers.

Flower of Odontoglossum Cerbantesii

Odontoglossum cervantesii flowers are one to two inches across. The flowers are rosy lilac barred at…

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots at their base. The scapes have two to five flowers. The flowers bloom in winter.

Habit and Detached Single Flower of Odontoglossum Rossii

Odontoglossum rossii flowers are one to two inches across. The petals are pure white with a few spots…

Oncidium excavatum flowers are golden yellow and they are spotted and blotched at the base with rich, bright brown. This variety is native to Peru.

Oncidium Excavatum

Oncidium excavatum flowers are golden yellow and they are spotted and blotched at the base with rich,…

The white Spanish onion has large bulbs that are somewhat flattened. The base is broad and sometimes a little hollow and uneven. The skin is a pale straw color.

White Spanish Onions

The white Spanish onion has large bulbs that are somewhat flattened. The base is broad and sometimes…

The yellow danvers onion has medium sized bulbs with a small base. The neck is fine and slender. The flesh is very firm.

Yellow Danvers Onion

The yellow danvers onion has medium sized bulbs with a small base. The neck is fine and slender. The…

Onion flies are similar to common houseflies in appearance. The larva burrow into onions and eat near the base, destroying the onion.

Onion Fly, Larva, and Pupa

Onion flies are similar to common houseflies in appearance. The larva burrow into onions and eat near…

Pictured is a section of an onion attacked by the larvae of the onion fly. The burrow of the larva is towards the base of the onion. The entire development of an onion fly attack is four to six weeks.

Larvae of Onion Fly

Pictured is a section of an onion attacked by the larvae of the onion fly. The burrow of the larva is…

Pictured are three cross sections from the ovary of hypericum hirsutum. A is from the upper part, B is from near the middle, and C is from the base of the ovary.

Three Cross Sections From Ovary of Hypericum Hirsutum

Pictured are three cross sections from the ovary of hypericum hirsutum. A is from the upper part, B…

Oxalis bowiei flowers are rose red and yellowish at the base inside. The flowers are large and bloom in August. The leaflets are three and obtuse.

Oxalis Bowiei

Oxalis bowiei flowers are rose red and yellowish at the base inside. The flowers are large and bloom…

A palmatifid leaf is cut half way to the base in a palmate manner.

Palmatifid Leaf

A palmatifid leaf is cut half way to the base in a palmate manner.

At the base of the agaricus melieus mushroom is the mycelium of the form called rhizomorpha fragilis.

Agaricus Melleus

At the base of the agaricus melieus mushroom is the mycelium of the form called rhizomorpha fragilis.

The acanthorhiza aculeata tree grows thirty to forty feet tall. The tree is spiny at the base. The flowers are a dark, creamy pink.

Acanthorhiza Aculeata

The acanthorhiza aculeata tree grows thirty to forty feet tall. The tree is spiny at the base. The flowers…

The leaves of adiantum farleyense often reach between fifteen and twenty four inches in length. The leaflets are wedge shaped at the base with curved sides.

Adiantum Farleyense

The leaves of adiantum farleyense often reach between fifteen and twenty four inches in length. The…

The leaflets of the <i>Adiantum cuneatum</i> fern are numerous and wedge shaped at the base. There are three to five sori on each segment.

Adiantum Cuneatum

The leaflets of the Adiantum cuneatum fern are numerous and wedge shaped at the base. There are three…

The leaves of <i>Ageratum houstonianum</i> are heart shaped at the base. The flowers are blue.

Ageratum Houstonianum

The leaves of Ageratum houstonianum are heart shaped at the base. The flowers are blue.

The common name of <i>Allium fistulosum</i> is welsh onion. It has no distinct bulb, but only an enlarged base or crown. The leaves are usually clustered.

Allium Fistulosum

The common name of Allium fistulosum is welsh onion. It has no distinct bulb, but only an enlarged base…

Sweet alyssum is the common name of <I>Alyssum maritime</i>. The flowers grow in clusters at the end of the stems. The flowers have a honey scent. The leaves taper to the base.

Sweet Alyssum

Sweet alyssum is the common name of Alyssum maritime. The flowers grow in clusters at the end of the…

The common name of arabis is rock-cress. The albida variety is only a few inches tall. The plant is covered in short, fine hairs. The lower leaves are narrow at the base.

Arabis Albida

The common name of arabis is rock-cress. The albida variety is only a few inches tall. The plant is…

Spanish fir is the common name of <I>Abies pinsapo</I>. Illustrated is the verdure from top to base.

Spanish Fir

Spanish fir is the common name of Abies pinsapo. Illustrated is the verdure from top to base.

Illustrated is the base of a young white pine tree attacked by <I>Armillaria mellea</I>. The mushroom <I>Armillaria mellea</I> can become parasitic, killing trees over large areas.

White Pine Tree Attacked by Armillaria Mellea

Illustrated is the base of a young white pine tree attacked by Armillaria mellea. The mushroom Armillaria…

The common name of <I>Arbutus menziesii</I> is madrona. The tree occasionally grows one hundred feet tall. The leaves are rounded or slightly heart shaped at the base. The flowers are white and the fruit is bright orange-red.

Arbutus Menziesii

The common name of Arbutus menziesii is madrona. The tree occasionally grows one hundred feet tall.…

The common names of <I>Artemisia stelleriana</I> are old woman, dusty miller, and beach wormwood. The plant grows two feet tall and has a woody, creeping base.

Artemisia Stelleriana

The common names of Artemisia stelleriana are old woman, dusty miller, and beach wormwood. The plant…

The edible parts of the artichoke are the the fleshy receptacle of the flower head and the thickened base of the scales. They can be eaten raw but are usually boiled and served with butter or sauce.

Edible Heads of Artichoke

The edible parts of the artichoke are the the fleshy receptacle of the flower head and the thickened…

Pictured is a plant arising from the base, or tip, of a triangular leaf cutting of begonia.

Plant Arising from Begonia

Pictured is a plant arising from the base, or tip, of a triangular leaf cutting of begonia.

Begonia corbeille de feu is also known as basket of fire. The flowers are bright, coral-red. The plant branches freely from the base.

Begonia Corbeille de Feu

Begonia corbeille de feu is also known as basket of fire. The flowers are bright, coral-red. The plant…

The viscosissima variety of calceolaria integrifolia is a sticky-hairy form with leaves attached at the base and showy flowers.

Viscosissima Variety of Calceolaria Integrifolia

The viscosissima variety of calceolaria integrifolia is a sticky-hairy form with leaves attached at…

The flowers of calochortus gunnisonii are light blue or almost white. The flowers are delicate yellowish green below the middle, purple banded at the base, and bearing a band of green hairs across each petal.

Calochortus Gunnisonii

The flowers of calochortus gunnisonii are light blue or almost white. The flowers are delicate yellowish…

The soldanellaeflora variety of campanula rotundifolia has semi-double blue flowers. The flowers are split to the base into about twenty five divisions.

Soldanellaeflora Variety of Campanula Rotundifolia

The soldanellaeflora variety of campanula rotundifolia has semi-double blue flowers. The flowers are…

Camptosorus rhizophyllus is a hardy fern. The leaves are simple and evergreen. The leaves taper from a heart shaped base. The leaves are four to twelve inches long.

Camptosorus Rhizophyllus

Camptosorus rhizophyllus is a hardy fern. The leaves are simple and evergreen. The leaves taper from…