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Showing posts with label Drupe. Show all posts
Showing posts with label Drupe. Show all posts

Saturday, January 8, 2011

Berry

Rubus Berry Plants

Berry


Rubus Berry Plants
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Rubus Berry Plants

Rubus Berry Plants

Berry

The botanical definition of a Berry is a fleshy Fruit produced from a single Ovary. Grapes are an example. The Berry is the most common type of fleshy fruit in which the entire Ovary wall ripens into an edible pericarp. They may have one or more carpels with a thin covering and fleshy interiors. The Seeds are usually embedded in the flesh of the Ovary. A plant that bears berries is said to be bacciferous. Many Species of Plants produce fruit that are similar to Berries but not actually Berries, and these are said to be baccate.

In everyday English, "Berry" is a term for any small edible fruit. These "Berries" are usually juicy, round or semi-oblong, brightly coloured, sweet or sour, and don't have a stone or pit, although many seeds may be present.

Many Berries, such as the Tomato, are edible, but others in the same Family, such as the fruits of the deadly nightshade (Atropa belladonna) and the fruits of the Potato (Solanum tuberosum) are poisonous to humans. Some Berries such as Capsicum have space rather than pulp around their seeds.



Botanical berries

In botanical language, a Berry is a simple fruit having seeds and pulp produced from a single Ovary; the Ovary can be inferior or superior.

Examples of botanical Berries include:

* Bearberry (Arctostaphylos spp.)
* Barberry (Berberis; Berberidaceae)
* Crowberry (Empetrum spp.)
* Currant (Ribes spp.; Grossulariaceae), red, black, and white types
* Elderberry (Sambucus niger; Caprifoliaceae)
* Gooseberry (Ribes spp.; Grossulariaceae)
* Grape, Vitis vinifera
* Honeysuckle: the Berries of some Species are edible and are called honeyberries, but others are poisonous (Lonicera spp.; Caprifoliaceae)
* Lingonberry Vaccinium vitis-idaea
* Mayapple (Podophyllum spp.; Berberidaceae)
* Nannyberry or sheepberry (Viburnum spp.; Caprifoliaceae)
* Oregon-grape (Mahonia aquifolium; Berberidaceae)
* Strawberry Tree (Arbutus unedo), not to be confused with the actual strawberry (Fragaria)
* Tomato and other Species of the Family Solanaceae
* Banana
* Cranberry
* Watermelon
* Pumpkin



Modified berries

The fruit of citrus, such as the orange, kumquat and lemon, is a Berry with a thick rind and a very juicy interior that is given the special name hesperidium.

Berries which develop from an inferior Ovary are sometimes termed epigynous Berries or false Berries, as opposed to true Berries which develop from a superior Ovary. In so-called epigynous Berries, the Berry includes tissue derived from parts of the flower besides the Ovary. The floral tube, formed from the basal part of the sepals, petals and stamens can become fleshy at maturity and is united with the Ovary to form the fruit. Common fruits that are sometimes classified as epigynous Berries include bananas, members of the Genus Vaccinium (e.g., cranberries and blueberries), and members of the Cucurbitaceae Family (e.g., cucumbers, melons and squash).

Another specialized term is also for Cucurbitaceae fruits, which are modified to have a hard outer rind. Berries with a hard outer rind are given the special name of pepo. While pepos are most common in the Cucurbitaceae, the fruits of Passiflora and Carica are sometimes also considered pepos.



Not a botanical berry

Many fruits commonly referred to as Berries are not actual Berries by the scientific definition, but fall into one of these categories:

Drupes

Drupes are fleshy fruits produced from a (usually) single-seeded Ovary with a hard stony layer (called the endocarp) surrounding the Seed.

* Plum
* Peach
* Hackberry (Celtis spp.; Cannabaceae)

Other drupe-like fruits with a single seed, that lack the stony endocarp include:

* Avocado (Persea americana)
* Sea-buckthorn (Hippophae rhamnoides; Elaeagnaceae) A single seed inside a fleshy fruit


Pomes

The pome Pyrinae of Family Rosaceae, such as apples and pears, have a structure (the core) that clearly separates the seeds from the Ovary tissue. However, some of the smaller pomes are sometimes referred to as Berries. Bright red haws from Crataegus are sometimes called hawberries. Amelanchier pomes become so soft at maturity that they resemble a blueberry and are known as Juneberries or Saskatoon berries.


Compound fruits

Compound fruits are groups or aggregates of multiple parts, and include:

* Aggregate fruits, which contain seeds from different ovaries of a single flower. Examples include blackberry, Raspberry, and bayberry.
* Multiple fruits, include the fruits of multiple flowers, that are merged or packed closely together. The mulberry is a berry-like example of a multiple fruit; it develops from a cluster of tiny separate flowers that become compressed as they develop into fruit.


Accessory fruits

In accessory fruits, the edible part is not generated by the Ovary. Berry-like examples include:

* Strawberry - the aggregate of seed-like Achenes is actually the "fruit", derived from an aggregate of ovaries, and the fleshy part develops from the receptacle.
* Gurbir, Duchesnea indica - structured just like a strawberry
* Sea Grape (Coccoloba uvifera; Polygonaceae) - the fruit is a dry Capsule surrounded by fleshy calyx
* Wintergreen (Gaultheria procumbens) - the fruit is a dry capsule surrounded by fleshy calyx


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Sunday, January 2, 2011

Drupe

Rubus Berry Plants

Drupe


Drupe ~ Rubus Berry Plants
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Rubus Berry Plants

Rubus Berry Plants

Drupe

In botany, a Drupe is a Fruit in which an outer fleshy part (exocarp, or skin; and mesocarp, or flesh) surrounds a shell (the pit or stone or pyrene) of hardened endocarp with a Seed inside. These fruits develop from a single carpel, and mostly from flowers with superior ovaries. The definitive characteristic of a Drupe is that the hard, lignified stone (or pit) is derived from the ovary wall of the flower.

Other fleshy fruits may have a stony enclosure that comes from the seed coat surrounding the seed, but such fruits are not Drupes.

Some Flowering plants that produce Drupes are coffee, jujube, mango, olive, most palms (including date, coconut and oil palms), pistachio, and all members of the Genus Prunus, including the almond (in which the mesocarp is somewhat leathery), apricot, cherry, damson, nectarine, peach, and plum.

Drupes, with their sweet, fleshy outer layer, attract the attention of animals as a food, and the Plant population benefits from the resulting dispersal of its seeds. The endocarp (pit or stone) is often swallowed, passing through the digestive tract, and returned to the soil in feces with the seed inside unharmed; sometimes it is dropped after the fleshy part is eaten.

Corking is a nutritional disorder in stone fruit caused by a lack of boron and/or calcium.

Many stone fruits contain sorbitol, which can exacerbate conditions such as irritable bowel syndrome and fructose malabsorption.


Tryma

Some fruits are borderline and difficult to categorize. Hickory nuts (Carya) and Walnuts (Juglans) in the Juglandaceae Family grow within an outer husk; these fruits are technically drupes or drupaceous nuts, and thus not true botanical nuts. Tryma is a specialized term for such nut-like drupes.


Related : Rubus
Related : Raspberry

Related : Drupe From Wikipedia, the free encyclopedia, Rubus Berry Plants
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