The CLASSIFICATION Of Nail
A. (Psilopyta)
The Psilophyta Division
is also called an ancient nail. As the name implies, this nail plant is already
extinct. Ancient nails are nails that are not leafy. If any, the ancient nail
has only small leaves (microfi l) that have not been deferred. Therefore,
photosynthesis is in stems containing chlorophyll. This nail plant also has the
nature of homospora Examples of horse spikes are Rhynia sp. Which is a leafless
primitive nail and Psilotum nudum which is a leafless nail.
B. (Lycophyta)
The body structure is
quite complete, which has the roots, stems and leaves true. The leaves are
small (microfil), not stemmed and one-boned leaf. Sporangium is present in the
leaf axillary, usually sporophyll collected at the end of the stem or branch
and forming a cone-like building, called strobilus.
Based on the presence
or absence of ligula (tongue in the leaf), this division is divided into two
classes namely Eligulopsida Class and Ligulopsida Class. The Eligulopsida class
is a wire nail that has no ligula,
For example Lycopodium
sp. While Ligulopsida is a wire nails that have ligula, for example paku rane
(Selaginella sp.).
C. Horsetail Horse (Arthrophyta Division)
Arthrophyta Division
has a body that branches are rocky and clearly look books and segments. Small
leaves such as membranes and composed of a concrete. Sporophils are always
different from ordinary leaves, usually shielded with a number of sporangium on
the underside. Sporophyll is a shaped body of a mace or cone at the end of a
stem or branch which is also referred to as strobilus. The root is very small
and smooth, found in books of rhizomes or at the base of the stem. Some species
have some kind of bulbs to deal with bad times. Horsetail is a plant with a
single genus, namely Equisetum. The genus contains only about 25 species, some
live on land and some live in swamps. An example is a horse tail (Equisetum
debile).
D. (Filicophyta)
Filicophyta also
include plants that have a complete body structure. True springs already have
true roots, stems, and leaves. The trunk is embedded in the ground forming a
rihzoma. The leaves are macrophil and their shape is various, stemmed, and bone
branches. When young, the leaves will curl in ujun Examples of plants spikes
true is platycerium (Plathycerium coronarium), spikes bird's nest (Asplenium
nidus), nail maidenhair ferns (Adiantum sp.), Nail paddy (Azolla pinnata) and
clover (Marsillea crenata ). Meanwhile, the lower side there are many
sporangium.
 | |
|
Benefits
Here are Some Benefits
of this Nail Plant:
1. Maintained as an
ornamental plant, for example platycerium (Platycerium bifurcatum), spikes
bird's nest (Asplenium sp), maidenhair ferns (Adiantum sp) and nail rane
(Selaginella sp)
2. Producing medicines
eg: Aspidium sp, Dryopteris filix mas, and a Lycopodium clavatum.
3. As a vegetable, eg
clover (Marsilea crenata) and Pteridium aqualium
4. As a green manure,
for example Azolla piñata,
5. As one of the
materials in making wreaths, for example Lycopodium cernuum.
0 Response to "The CLASSIFICATION Of Nail"
Post a Comment