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8/19/2019 Wrightia antidysenterica
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Wrightia
Antidysenterica“Angel White”Morphology and Anatomy
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Submitted to: Submitted by:
Ma’am Anita S. Mabao Praise Lou Joyce L. Palmitos
Allona G. Reasol
Xavier University – Ateneo de Cagayan
Biology 33 YB
TABLE OF CONTENTS
I.Introduction
II. The Morphology
A. Root
B.Stem
C.LeafD.Flowers and Fruits
III. The Anatomy
A.Root
B.Stem
C.Leaf
D.Flowers and Fruits
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omain: Eukaryota ( ) - Chatton, 1925 - eukaryotes
Kingdom: Plantae ( ) - Haeckel, 1866 - Plants
Subkingdom:Viridaeplantae ( ) - Cavalier-Smith, 1981
Phylum:Tracheophyta ( ) - Sinnott, 1935 ex Cavalier-
Smith, 1998 - Vascular Plants
Subphylum: Euphyllophytina ( ) - Kenrick & Crane,
1997, nom. inval.
Infraphylum: Radiatopses ( ) - Kenrick &
Crane, 1997
Class:Spermatopsida( ) - Novák ex
Takht. (1967)
Subclass: Magnoliidae ( ) -
Novák ex Takhtajan, 1967 -
Angiosperms
Superorder: Asteranae ( ) - Takhtajan, 1967Order:Gentianales ( ) - Lindley, 1833
Family: Apocynaceae ( ) - A.L. de Jussieu, 1789, nom. cons. -
Dogbane Family
Subfamily: Apocynoideae ( )
Tribe:Wrightieae ( )
Genus:Wrightia ( ) - R. Brown, 1810
Specific epithet:antidysenterica- (L.) R.
Br.
Botanical name:-Wrightia
antidysenterica (L.) R. Br.
http://zipcodezoo.com/Key/Plantae/Eukaryota_Domain.asphttp://zipcodezoo.com/Key/Plantae/Eukaryota_Domain.asphttp://zipcodezoo.com/Key/Plantae/Plantae_Kingdom.asphttp://zipcodezoo.com/Key/Plantae/Viridaeplantae_Subkingdom.asphttp://zipcodezoo.com/Key/Plantae/Tracheophyta_Phylum.asphttp://zipcodezoo.com/Key/Plantae/Euphyllophytina_Subphylum.asphttp://zipcodezoo.com/Key/Plantae/Euphyllophytina_Subphylum.asphttp://zipcodezoo.com/Key/Plantae/Radiatopses_Infraphylum.asphttp://zipcodezoo.com/Key/Plantae/Spermatopsida%20_Class.asphttp://zipcodezoo.com/Key/Plantae/Magnoliidae_Subclass.asphttp://zipcodezoo.com/Key/Plantae/Asteranae_Superorder.asphttp://zipcodezoo.com/Key/Plantae/Gentianales_Order.asphttp://zipcodezoo.com/Key/Plantae/Gentianales_Order.asphttp://zipcodezoo.com/Key/Plantae/Apocynaceae_Family.asphttp://zipcodezoo.com/Key/Plantae/Apocynoideae_Subfamily.asphttp://zipcodezoo.com/Key/Plantae/Wrightieae_Tribe.asphttp://zipcodezoo.com/Key/Plantae/Wrightia_Genus.asphttp://zipcodezoo.com/Key/Plantae/Plantae_Kingdom.asphttp://zipcodezoo.com/Key/Plantae/Viridaeplantae_Subkingdom.asphttp://zipcodezoo.com/Key/Plantae/Tracheophyta_Phylum.asphttp://zipcodezoo.com/Key/Plantae/Euphyllophytina_Subphylum.asphttp://zipcodezoo.com/Key/Plantae/Radiatopses_Infraphylum.asphttp://zipcodezoo.com/Key/Plantae/Spermatopsida%20_Class.asphttp://zipcodezoo.com/Key/Plantae/Magnoliidae_Subclass.asphttp://zipcodezoo.com/Key/Plantae/Asteranae_Superorder.asphttp://zipcodezoo.com/Key/Plantae/Gentianales_Order.asphttp://zipcodezoo.com/Key/Plantae/Apocynaceae_Family.asphttp://zipcodezoo.com/Key/Plantae/Apocynoideae_Subfamily.asphttp://zipcodezoo.com/Key/Plantae/Wrightieae_Tribe.asphttp://zipcodezoo.com/Key/Plantae/Wrightia_Genus.asphttp://zipcodezoo.com/Key/Plantae/Eukaryota_Domain.asp
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THE ROOTMorphology
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The Wrightia Antidysenterica, “White Angel”, exhibits a Fibrous Root
System. As shown on the photo above, it has no single large taproot because
the embryonic root dies back when the plant is still young, this allows fibrous
roots to project them the stem and into the soil.
Fibrous root system can be extremely useful in erosion control, as the
roots help to hold soil in place. Also the roots can trap moisture for the plant
and their wide spread ensures that the plant gets amply of access to nutrients
and water. These plants can be difficult to pull out and eradicate because they
grip the soil so firmly, and the plant will regrow if the roots are not fully
removed.Typically, fibrous roots can be found projecting from taproots to
gather nutrients for the plant.
Fibrous Roots
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THE ROOTAnatomy
THE StemMorphology
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Stems produce and support leaves, which are the food-making centers of
plants. They provide passageways along which various substances are
transported within the plant. Also they serve as food storage and in certain
cases, parts of stems propagate plants.
The first stem develops from the embryo of the seed, and then a
miniature stem emerges as the seed germinates.
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THE LEAFMorphology
Aex
Margi
Vein
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The photo above shows the leaf of the White Angel plant. Leaves are the
food making center of the plant, in which the process known as
photosynthesis, wherein carbon dioxide and water are put together to producesugar glucose and oxygen.
Leaves arise from tissue just back of the growing points of buds. The leaf
can be classified into simple leaf, where the blade is single piece and not
divided into distinct parts and compound leaf, whereas the blade is divided into
sevarl pieces. Compound leafs could be pinnately and palmately compound.
Generally, a leaf consist of a leaf stalk, or petiole and leaf proper, usually green,
flat, thin and expanded part of the leaf called a blade. The framework of all
blades is made up of a network of veins, which is composed of a midvein of the
leaf called midrib. It is the dominant vein from which the secondary veins arise
along the either sides.
In relation, venation is the system of arrangement of the veins on a leaf.
As shown on the picture, it shows that the leaf of the White Angel has the
following morphology;
Type:
Venation: Reticulate or Netted Venation
General Outline: Ovate
Apex: Broadly AcuminateMargin: Entire
Base: Attenuate
Midri
Base
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THE LEAFAnatomy
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The photo shown above if the lower epidermis of the leaf of white angel,
(400x). Bothe sides of the leaf contains an epidermal layer, The epidermis, a
surface layer of cells, covered on the outside with a waxy coating or cuticle. The
lower epidermis of the leaf has various openings, or pores known as stomata.
Gases such as carbon dioxide, oxygen and water vapor pass in and out through
these pores.
As shown, each stoma is surrounded by a pair of guard cells. Changes in
shape happens as their water content increases or decreases, this way the size
of the stoma can be regulated. Compared to the upper epidermal layer, it has
fewer stomata than the lower one and its cuticle is thicker.
Stomata
Guad Cells
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REFERENCES
McMahon, M., & Wallace, O. (n.d.). Retrieved March 12, 2015, romhttp!""###.#i$egee%.com"#hati$a'ro$root.htm .
http://www.wisegeek.com/what-is-a-fibrous-root.htmhttp://www.wisegeek.com/what-is-a-fibrous-root.htm