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| Gossypium arboreum L. |
Gossypium arboreum, commonly called tree cotton, is a species of cotton native to India and Pakistan and other tropical and subtropical regions of the Old World. Carl Linnaeus (Latinized as Carolus Linnaeus, also known after his ennoblement as, May 23 new style (13 May old style 1707 who laid the foundations for For information on cotton production industry history and applications see Cotton. India, officially the Republic of India (भारत गणराज्य inc-Latn Bhārat Gaṇarājya; see also other Indian languages) is a country Pakistan () officially the Islamic Republic of Pakistan, is a country located in South Asia, Southwest Asia, Middle East and The Old World consists of those parts of Earth known to Europeans Asians and Africans in the 15th century There is evidence of its cultivation as long ago as 2000 BC by the Harappan civilization of the Indus Valley for the production of cotton textiles. The Indus Valley Civilization (Mature period 2600&ndash1900 BCE abbreviated IVC, was an ancient Civilization that flourished in the Indus River basin The Indus River { Sanskrit: सिन्धु Sindhu; Urdu: urd {{Nastaliq سندھ}} Sindh; Sindhi: snd This species of cotton was introduced into East Africa by about 2000 years ago, and was grown by the Meroe civilization in Nubia, the first cotton weavers in Africa. Meroë ( Meroitic: Medewi or Bedewi; Arabic: ar مرواه ar-Latn Meruwah) is the name of an ancient city on the east bank of the This article is about the region in Africa for other uses see Nubia (disambiguation. The shrub was included in Linnaeus's Species Plantarum published in 1753. Carl Linnaeus (Latinized as Carolus Linnaeus, also known after his ennoblement as, May 23 new style (13 May old style 1707 who laid the foundations for Species Plantarum ("The Species of Plants" was first published in 1753, as a two-volume work by Carl Linnaeus. The holotype was also supplied by him, which is now in the Linnean Herbarium in the Swedish Museum of Natural History. A holotype is one of several possible Biological types A type is what fixes a name to a Taxon. The Swedish Museum of Natural History (in Swedish Naturhistoriska riksmuseet, literally the National Museum of Natural History in Stockholm, is [1]
Description
Tree cotton is a shrub attaining heights of 1 to 2 metres. Its branches are covered with pubescence and are purple in colour. Stipules are present at the leaf base and they are linear to lanceolate in shape and sometimes falcate (i. In Botany, stipule ( Latin stipula: straw stalk is a term coined by Linnaeus e. sickle-shaped). The leaves are attached to the stem by a 1. 5 to 10 cm petiole. In Botany, the petiole is the small stalk attaching the Leaf blade to the stem. The blades are ovate to orbicular in shape and have 5 to 7 lobes, making them superficially resemble a maple leaf. Acer ( maple) is a Genus of Trees or Shrubs They are variously classified in a family of their own the Aceraceae, or The lobes are linear to lanceolate, and often a tooth is present in the sinus. Glands are present along the midrib or occasionally on the adjacent nerves. A gland is an organ in an animal's body that synthesizes a substance for release such as Hormones or Breast milk, often into the Bloodstream The leaves are glabrescent, meaning the pubescence is lost with age, but when it is present on young leaves, it is both stellate (i. e. star-shaped) and simple. [1]
The flowers are set on short pedicels (i. A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also A pedicel is a stem that attaches single Flowers to the main stem of the Inflorescence. e. flower stalks). An epicalyx is present, which is a series of subtending bracts that resemble sepals. In Botany, a bract is a modified or specialized Leaf. Bracts are ordinarily associated with reproductive structures (subtending Flowers Inflorescence A sepal (from Latin separatus "separate" + petalum "petal" is a part of the flower of Angiosperms or flower plants It has large, ovate segments that are dentate (i. e. toothed along the margins), though sometimes only very slightly so. They are cordate (i. e. heart-shaped) at the base and acute at the apex. The true calyx is small, measuring only about 5 mm in length. Its shape is cupular, and there are 5 subtle dentations present. The corolla is a pale yellow on colour, sometimes with a purple centre, and occasionally entirely purple. A petal (from Ancient Greek petalon "leaf" "thin plate" regarded as a highly modified leaf is one member or part of the corolla It measures 3 to 4 cm in length. The staminal tube bears the anthers and is 1. The stamen ( Plural stamina or stamens, from Latin stamen meaning "thread of the warp " is the male 5 to 2 cm in length. The fruit is a 3 to 4 celled capsule measuring 1. The term fruit has different meanings dependent on context and the term is not synonymous in Food preparation and Biology. 5 to 2. 5 cm across. It is ovoid or oblong in shape and glabrous (i. e. hairless). The surface is pitted and a beak is present at the termnial end. The seeds within are globular and are covered in long white cotton. Cotton is a soft staple Fibre that grows around the seeds of the cotton plant ( Gossypium sp [1]
References
- ^ a b c Abedin, Sultanul (1979), “Gossypium arboreum”, in Ali, S. I. ; Qaiser, M. , Flora of Pakistan, vol. 130, St. Louis: University of Karachi & Missouri Botanical Garden, pp. 30
External links
Media related to Gossypium arboreum from the Wikimedia Commons.
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