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Українські рефератиРусские рефератыКниги
НазваAloe (реферат)
РозділІноземна мова, реферати англійською, німецькою
ФорматWord Doc
Тип документуРеферат
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Реферат на тему:




Aloe is a HYPERLINK "" \o "Genus"

genus of HYPERLINK "" \o

"Succulent plant" succulent , HYPERLINK

"" \o "Flowering plant"

flowering plants in the family HYPERLINK

"" \o "Asphodelaceae"

Asphodelaceae , which contains about 400 different HYPERLINK

"" \o "Species" species . They are

native to the drier parts of HYPERLINK

"" \o "Africa" Africa , especially

HYPERLINK "" \o "South Africa"

South Africa 's HYPERLINK ""

\o "Cape Province" Cape Province and the mountains of tropical Africa.


Members of the closely allied genera HYPERLINK

"" \o

"Gasteria" Gasteria and HYPERLINK

"" \o "Haworthia" Haworthia ,

which have a similar mode of growth, are also sometimes popularly known

as aloes. Note that the plant sometimes called "American aloe", Agave

americana, belongs to a different family, namely HYPERLINK

"" \o "Agavaceae" Agavaceae .


Aloe plants are stiff and rugged, consisting mainly of a rosette of

large, thick, fleshy HYPERLINK "" \o

"Leaf" leaves . Many common varieties of Aloe are seemingly stemless,

with the rosette growing directly at ground level; Other varieties may

mave a branched or un-branched HYPERLINK

"" \o "Stem" stem from which the

fleshy leaves spring. The leaves are generally lance-shaped with a sharp

apex and a spiny margin. They vary in color from grey to bright green

and are sometimes striped or mottled.


Aloe HYPERLINK "" \o "Flower"

flowers are small, tubular, and yellow or red and are borne on densely

clustered, simple or branched leafless stems. The plants are cultivated

as ornamental plants, especially in public buildings and gardens.




Human use of Aloes is primarily as an herbal in alternative medicines

and "home first aid". Both the translucent inner plup as well as the

resinous yellow exudate from wounding the Aloe plant is used externally

to relieve skin discomforts and internally as purgatives. To date,

research has show in certain cases that Aloes produce positive medicinal

benefits for healing damaged skin, however there is still much debate

regarding the effectiveness and safety for using Aloes medicinally in

other manners.


Some Aloes have been used for human consumption. For example drinks made

from or containing chunks of aloe pulp are popular in Asia as commercial

beverages, and as a tea additive. This is notably true in HYPERLINK

"" \o "Korea" Korea . As well, the

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