wrightia antidysenterica

8/19/2019 Wrightia antidysenterica

1/12

Wrightia

Antidysenterica“Angel White”Morphology and Anatomy


2/12

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


3/12

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


4/12

THE ROOTMorphology


5/12

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


6/12

THE ROOTAnatomy

THE StemMorphology


7/12

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.


8/12

THE LEAFMorphology

Aex

Margi

Vein


9/12

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


10/12

THE LEAFAnatomy


11/12

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


12/12

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

wrightia antidysenterica

Documents