• Plants Plants
    Welcome To My Blog ~ Read Plants Article

Showing posts with label Flower. Show all posts
Showing posts with label Flower. Show all posts

Saturday, January 22, 2011

Indehiscent

Rubus Berry Plants

Indehiscent


Indehiscent ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Indehiscent

Dehiscence is the opening, at maturity, of a Plant structure, such as a Fruit, anther, or sporangium, to release its contents. Sometimes this involves the complete detachment of a part. Structures that open in this way are said to be dehiscent. Structures, such as fruit, that do not open are called Indehiscent.

A similar process to Dehiscence occurs in some Flower buds (e.g. Platycodon, Fuchsia), but this is rarely referred to as Dehiscence unless circumscissile Dehiscence is involved; anthesis is the usual term for the opening of flowers. Dehiscence may or may not involve the loss of a structure through the process of abscission. The lost structures are said to be caducous.


Related : Rubus
Related : Raspberry

Related : Indehiscent From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Thursday, January 20, 2011

Peanut

Rubus Berry Plants

Peanut


Peanut ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Peanut

The Peanut, or groundnut (Arachis hypogaea), is a Species in the Legume or "bean" Family (Fabaceae). The cultivated Peanut was probably first domesticated in the valleys of Peru. It is an annual herbaceous Plant growing 30 to 50 cm (0.98 to 1.6 ft) tall. The leaves are opposite, pinnate with four leaflets (two opposite pairs, no terminal leaflet), each leaflet 1 to 7 cm (3/8 to 2 3/4 in) long and 1 to 3 cm (3/8 to 1 inch) broad. The Flowers are a typical peaflower in shape, 2 to 4 cm (¾ to 1½ in) across, yellow with reddish veining. After pollination, the Fruit develops into a legume 3 to 7 cm (1.2 to 2.8 in) long, containing 1 to 4 Seeds, which forces its way underground to mature. Hypogaea means "under the earth."

Peanuts are known by many other local names such as earthnuts, ground nuts, goober peas, monkey nuts, pygmy nuts and pig nuts.


History

The domesticated Peanut is an amphidiploid or allotetraploid, meaning that it has two sets of chromosomes from two different species, thought to be A. duranensis and A. ipaensis. These likely combined in the wild to form the tetraploid species A. monticola, which gave rise to the domesticated Peanut. This domestication might have taken place in Paraguay or Bolivia, where the wildest strains grow today. In fact, many pre-Columbian cultures, such as the Moche, depicted Peanuts in their art.

Archeologists have (thus far) dated the oldest specimens to about 7,600 years found in Peru. Cultivation spread as far as Mesoamerica where the Spanish conquistadors found the tlalcacahuatl (Nahuatl = 'Peanut' whence Mexican Spanish, cacahuate and French, cacahuete) being offered for sale in the marketplace of Tenochtitlan (Mexico City). The plant was later spread worldwide by European traders.


Related : Rubus
Related : Raspberry

Related : Peanut From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Tuesday, January 18, 2011

Pea

Rubus Berry Plants

Pea


Pea ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Pea

A Pea is most commonly the small spherical seed or the seed-pod of the Legume Pisum sativum. Each pod contains several Peas. Peapods are botanically a Fruit, since they contain Seeds developed from the ovary of a (Pea) Flower. However, Peas are considered to be a vegetable in cooking. The name is also used to describe other edible seeds from the Fabaceae such as the pigeon Pea (Cajanus cajan), the cowpea (Vigna unguiculata), and the seeds from several Species of Lathyrus.

P. sativum is an annual Plant, with a life cycle of one year. It is a cool season crop grown in many parts of the world; planting can take place from winter through to early summer depending on location. The average Pea weighs between 0.1 and 0.36 grams. The species is used as a vegetable, fresh, frozen or canned, and is also grown to produce dry Peas like the split Pea. These varieties are typically called field Peas.

The wild Pea is restricted to the Mediterranean basin and the Near East. The earliest archaeological finds of Peas come from Neolithic Syria, Turkey and Jordan. In Egypt, early finds date from ca. 4800–4400 BC in the Nile delta area, and from ca. 3800–3600 BC in Upper Egypt. The Pea was also present in Georgia in the 5th millennium BC. Farther east, the finds are younger. Peas were present in Afghanistan ca. 2000 BC, in Harappa, Pakistan, and in northwest India in 2250–1750 BC. In the second half of the 2nd millennium BC this pulse crop appears in the Gangetic basin and southern India.


Related : Rubus
Related : Raspberry

Related : Pea From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Monday, January 17, 2011

Milkweed

Rubus Berry Plants

Milkweed


Milkweed ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Milkweed

Asclepias L. (1753), the Milkweed, is a Genus of herbaceous perennial, dicotyledonous Plants that contains over 140 known Species. It previously belonged to the Family Asclepiadaceae, but this is now classified as the subfamily Asclepiadoideae of the dogbane family Apocynaceae.

Milkweed is named for its milky juice, which contains alkaloids, latex, and several other complex compounds including cardenolides. Some species are known to be toxic.

Carl Linnaeus named the genus after Asclepius, the Greek god of healing, because of the many folk-medicinal uses for the Milkweed plants.

Pollination in this genus is accomplished in an unusual manner. Pollen is grouped into complex structures called pollinia (or "pollen sacs"), rather than being individual grains or tetrads, as is typical for most plants. The feet or mouthparts of Flower visiting insects such as bees, wasps and butterflies, slip into one of the five slits in each flower formed by adjacent anthers. The bases of the pollinia then mechanically attach to the insect, pulling a pair of pollen sacs free when the pollinator flies off. Pollination is effected by the reverse procedure in which one of the pollinia becomes trapped within the anther slit.

Asclepias species produce their Seeds in follicles. The seeds, which are arranged in overlapping rows, have white silky filament-like hairs known as pappus, silk, or floss. The follicles ripen and split open and the seeds, each carried by several dried pappus, are blown by the wind.


Related : Rubus
Related : Raspberry

Related : Milkweed From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Saturday, January 15, 2011

Coconut

Rubus Berry Plants

Coconut


Coconut ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Coconut

The Coconut (Cocos nucifera) is a member of the Family Arecaceae (palm family). It is the only accepted Species in the Genus Cocos, and is a large palm, growing up to 30 m tall, with pinnate leaves 4–6 m long, and pinnae 60–90 cm long; old leaves break away cleanly, leaving the trunk smooth. The term Coconut can refer to the entire Coconut palm, the Seed, or the fruit, which is not a botanical nut. The spelling cocoanut is an old-fashioned form of the word.

The Coconut palm is grown throughout the tropics for decoration, as well as for its many culinary and non-culinary uses; virtually every part of the Coconut palm can be utilized by humans in some manner. However, the extent of cultivation in the tropics is threatening a number of habitats such as mangroves; an example of such damage to an ecoregion is in the Petenes mangroves of the Yucatan. In cooler climates (but not less than USDA Zone 9), a similar palm, the queen palm (Syagrus romanzoffiana), is used in landscaping. Its Fruits are very similar to the Coconut, but much smaller. The queen palm was originally classified in the genus Cocos along with the Coconut, but was later reclassified in Syagrus. A recently discovered palm, Beccariophoenix alfredii from Madagascar, is nearly identical to the Coconut, and more so than the queen palm. It is cold-hardy, and produces a Coconut lookalike in cooler areas.

The Coconut has spread across much of the tropics, probably aided in many cases by seafaring people. Coconut fruit in the wild is light, buoyant and highly water resistant, and evolved to disperse significant distances via marine currents. Fruit collected from the sea as far north as Norway are viable. In the Hawaiian Islands, the Coconut is regarded as a Polynesian introduction, first brought to the islands by early Polynesian voyagers from their homelands in Oceania. They are now almost ubiquitous between 26°N and 26°S except for the interiors of Africa and South America.

The Flowers of the Coconut palm are polygamomonoecious, with both male and female flowers in the same inflorescence. Flowering occurs continuously. Coconut palms are believed to be largely cross-pollinated, although some dwarf varieties are self-pollinating. The meat of the Coconut is the edible endosperm, located on the inner surface of the shell. Inside the endosperm layer, Coconuts contain an edible clear liquid that is sweet, salty, or both.

The Indian state of Kerala is known as the Land of Coconuts. The name derives from "Kera" (the Coconut tree) and "Alam" ( "place" or "earth"). Kerala has beaches fringed by Coconut trees, a dense network of waterways, flanked by green palm groves and cultivated fields. Coconuts form a part of daily diet, the oil is used for cooking, coir is used for furnishing, decorating, etc.

Coconuts received the name from Portuguese explorers, the sailors of Vasco da Gama in India, who first brought them to Europe. The brown and hairy surface of Coconuts reminded them of a ghost or witch called Coco. Before it was called nux indica, a name given by Marco Polo in 1280 while in Sumatra, taken from the Arabs who called it jawz hindi. Both names translate to "Indian nut." When Coconuts arrived in England, they retained the coco name and nut was added.


Related : Rubus
Related : Raspberry

Related : Coconut From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Friday, January 14, 2011

Taraxacum

Rubus Berry Plants

Taraxacum


Taraxacum ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Taraxacum

Taraxacum is a large Genus of Flowering plants in the Family Asteraceae. They are native to Eurasia and North America, and two Species, T. officinale and T. erythrospermum, are found as weeds worldwide. Both species are edible in their entirety. The common name dandelion is given to members of the genus, and like other members of the Asteraceae family, they have very small Flowers collected together into a composite flower head. Each single flower in a head is called a floret. Many Taraxacum species produce Seeds Asexually by apomixis, where the seeds are produced without pollination, resulting in offspring that are genetically identical to the parent Plant.



Selected species

*Taraxacum albidum, a white-flowering Japanese dandelion.
*Taraxacum californicum, the endangered California dandelion
*Taraxacum japonicum, Japanese dandelion. No ring of smallish, downward-turned leaves under the flowerhead.
*Taraxacum kok-saghyz, Russian dandelion, which produces rubber
*Taraxacum laevigatum, Red-seeded Dandelion; achenes reddish brown and leaves deeply cut throughout length. Inner bracts' tips are hooded.
  • Taraxacum erythrospermum, often considered a variety of Taraxacum laevigatum.
*Taraxacum officinale (syn. T. officinale subsp. vulgare), Common Dandelion. Found in many forms.


Related : Rubus
Related : Raspberry

Related : Taraxacum From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Tuesday, January 11, 2011

Brazil Nut

Rubus Berry Plants

Brazil Nut


Brazil Nut ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Brazil Nut

The Brazil Nut (Bertholletia excelsa) is a South American tree in the Family Lecythidaceae, and also the name of the tree's commercially harvested edible Seed.

The Brazil Nut family is in the order Ericales, as are other well known Plants such as: blueberries, cranberries, sapote, gutta-percha, tea, kiwi Fruit, phlox, and persimmons.

The Brazil Nut tree is the only Species in the monotypic type Genus Bertholletia. It is native to the Guianas, Venezuela, Brazil, eastern Colombia, eastern Peru and eastern Bolivia. It occurs as scattered trees in large forests on the banks of the Amazon, Rio Negro, Tapajós, and the Orinoco. The genus is named after the French chemist Claude Louis Berthollet.

The Brazil Nut is a large tree, reaching 30–45 metres (100–150 ft) tall and 1–2 metres (3–6.5 ft) trunk diameter, among the largest of trees in the Amazon Rainforests. It may live for 500 years or more, and according to some authorities often reaches an age of 1,000 years. The stem is straight and commonly unbranched for well over half the tree's height, with a large emergent crown of long branches above the surrounding canopy of other trees. The bark is grayish and smooth. The leaves are dry-season deciduous, alternate, simple, entire or crenate, oblong, 20–35 centimetre long and 10–15 centimetres broad. The flowers are small, greenish-white, in panicles 5–10 centimetres long; each Flower has a two-parted, deciduous calyx, six unequal cream-colored petals, and numerous stamens united into a broad, hood-shaped mass.


Related : Rubus
Related : Raspberry

Related : Brazil Nut From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Monday, January 10, 2011

Tuliptree

Rubus Berry Plants

Tuliptree


Tuliptree ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Tuliptree

Liriodendron is a Genus of two Species of tree in the Magnoliaceae Family, known under the common name Tulip Tree (although it is unrelated to the tulip). Liriodendron tulipifera is native to eastern North America, while Liriodendron chinense is native to China and Vietnam. Both species are large deciduous trees. Various extinct species have been described from the fossil record.



Description

The tulip tree is sometimes called "tulip poplar" or "yellow poplar", and the wood simply "poplar", although unrelated to the genus Populus. The tree is also called canoewood, saddle leaf tree and white wood. The Onondaga tribe calls it Ko-yen-ta-ka-ah-tas (the white tree).

Liriodendron are easily recognized by their leaves, which are distinctive, having four lobes in most cases and a cross-cut notched or straight apex. Leaf size varies from 8–22 cm long and 6–25 cm wide.

The Tulip Tree is a large tree, 18–32 m high and 60–120 cm in diameter. It is trunk columnar, with a long, branch-free bole forming a compact, rather than open, conical crown of slender branches. It has deep roots that are wide spread.

Leaves are slightly larger in L. chinense but with considerable overlap between the species; the petiole is 4–18 cm long. Leaves on young trees tend to be more deeply lobed and larger size than those on mature trees. In autumn, the leaves turn yellow or brown and yellow. Both species grow rapidly in rich, moist soils of temperate climates. They hybridize easily, and the progeny often grow faster than either parent.

Flowers are 3–10 cm in diameter and have nine tepals - three green outer sepals and six inner petals which are yellow-green with an orange flare at the base. They start forming after around 15 years and are superficially similar to a tulip in shape, hence the tree's name. Flowers of L. tulipifera have a faint cucumber odor. The stamens and pistils are arranged spirally around a central spike or gynaecium; the stamens fall off, and the pistils become the Samaras. The Fruit is a cone-like aggregate of samaras 4–9 cm long, each of which has a roughly tetrahedral Seed with one edge attached to the central conical spike and the other edge attached to the wing.


Related : Rubus
Related : Raspberry

Related : Tuliptree From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

Flower

Rubus Berry Plants

Flower


Flower ~ Rubus Berry Plants
Picture Of

Rubus Berry Plants

Rubus Berry Plants

Flower

A Flower, sometimes known as a bloom or blossom, is the Reproductive structure found in Flowering plants (Plants of the division Magnoliophyta, also called angiosperms). The biological function of a Flower is to mediate the union of male sperm with female ovum in order to produce Seeds. The process begins with pollination, is followed by fertilization, leading to the formation and dispersal of the Seeds. For the higher Plants, Seeds are the next generation, and serve as the primary means by which individuals of a Species are dispersed across the landscape. The grouping of Flowers on a Plant is called the inflorescence.

In addition to serving as the reproductive organs of Flowering Plants, Flowers have long been admired and used by humans, mainly to beautify their environment but also as a source of food.



Flower specialization and pollination

Flowering Plants usually face selective pressure to optimise the transfer of their pollen, and this is typically reflected in the morphology of the Flowers and the behaviour of the Plants. Pollen may be transferred between Plants via a number of 'vectors'. Some Plants make use of abiotic vectors — namely wind (anemophily) or, much less commonly, water (hydrophily). Others use biotic vectors including insects (entomophily), birds (ornithophily), bats (chiropterophily) or other animals. Some Plants make use of multiple vectors, but many are highly specialised.

Cleistogamous Flowers are self pollinated, after which they may or may not open. Many Viola and some Salvia Species are known to have these types of Flowers.

The Flowers of Plants that make use of biotic pollen vectors commonly have glands called nectaries that act as an incentive for animals to visit the Flower. Some Flowers have patterns, called nectar guides, that show pollinators where to look for nectar. Flowers also attract pollinators by scent and color. Still other Flowers use mimicry to attract pollinators. Some Species of orchids, for example, produce Flowers resembling female bees in color, shape, and scent. Flowers are also specialized in shape and have an arrangement of the stamens that ensures that pollen grains are transferred to the bodies of the pollinator when it lands in search of its attractant (such as nectar, pollen, or a mate). In pursuing this attractant from many Flowers of the same Species, the pollinator transfers pollen to the stigmas—arranged with equally pointed precision—of all of the Flowers it visits.

Anemophilous Flowers use the wind to move pollen from one Flower to the next. Examples include grasses, birch trees, ragweed and maples. They have no need to attract pollinators and therefore tend not to be "showy" Flowers. Male and female reproductive organs are generally found in separate Flowers, the male Flowers having a number of long filaments terminating in exposed stamens, and the female Flowers having long, feather-like stigmas. Whereas the pollen of animal-pollinated Flowers tends to be large-grained, sticky, and rich in protein (another "reward" for pollinators), anemophilous Flower pollen is usually small-grained, very light, and of little nutritional value to animals.


Related : Rubus
Related : Raspberry

Related : Flower From Wikipedia, the free encyclopedia, Rubus Berry Plants
Read more »

 
powered by Rubus Berry Plants