Album of stem and leaf

República Bolivariana de VenezuelaInstituto Universitario Politécnico

“Santiago Mariño”Extensión: Mérida

Ingeniería Agronómica

Student:Geles V. Herrera S.I.C.: v-23.304.331

Mérida, January 2014

ALBUM OF

STEM AND LEAF

DEFINITIONSSTEM: the unit on which the leaves and flowers

develop, usually air, straight and elongated,

but has a modified structure in some plants. LEAF: They are the lateral

appendages of limited stem growth only scam

where do perform photosynthesis and gas

exchange.

EXTERNAL PARTS STEM:

INTERNAL PARTS (Stem)

1. Cambium. 2. Xylem. 3. Phloem. 4. Periderm.

Types of branching.

a -. Dummy.

b -. Lateral monopodic.

c.-Lateral simpodic.

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Classification.

*AIR.

stem, stipe, reed, calamus, succulent. climber.

Stem. Stipe.

Reed.

Calamus.

Succulent.

Climber.

*Underground:Bulb.

Shallots,

Garlic.

Onion. Leeks.

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Tuber.

Yam.

Pope.

Cassava.

Rhizome.

Bamboo Mexico.

Lily rhizome.

EXTERNAL PARTS:

(LEAF)

Lateral rib

INTERNAL PARTS(Leaf)

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CLASSIFICATION.According to the form:

Acintada.

Facilform(sickle-shaped).

Lobed.

Lanceolate.

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Acorazonada.

Escuamiform. (flaky).

Acicular (needle).

Flabellate.(fan-shaped)

Ovate.(egg-shaped).






Oval.

Alesnada.(arrowhead shaped).

Linear.




According aside:

Ciliated.

Crenate.

Toothed.

I denticulate.

Double sawing.

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Integer.

Lobed.

Sawing.

Finely serrated.

I sinuate.

Prickly.

Wavy.








As venation:

Open. Closed.

Dichotomous.Longitudinal striated.

Webbed. Parallel.







Pinnate.

Crosslinked.

Radiated.




Phyllotaxis: Phyllotaxis is called the arrangement of leaves on the stem.

a) alternately b) opposite.c) statistical d) verticilidas.

Documents

Album of stem and leaf