album of stem and leaf
DESCRIPTION
ÂTRANSCRIPT
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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
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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.
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EXTERNAL PARTS STEM:
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INTERNAL PARTS (Stem)
1. Cambium. 2. Xylem. 3. Phloem. 4. Periderm.
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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.
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Calamus.
Succulent.
Climber.
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*Underground:Bulb.
Shallots,
Garlic.
Onion. Leeks.
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Tuber.
Yam.
Pope.
Cassava.
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Rhizome.
Bamboo Mexico.
Lily rhizome.
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EXTERNAL PARTS:
(LEAF)
Lateral rib
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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).
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Oval.
Alesnada.(arrowhead shaped).
Linear.
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According aside:
Ciliated.
Crenate.
Toothed.
I denticulate.
Double sawing.
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Integer.
Lobed.
Sawing.
Finely serrated.
I sinuate.
Prickly.
Wavy.
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As venation:
Open. Closed.
Dichotomous.Longitudinal striated.
Webbed. Parallel.
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Pinnate.
Crosslinked.
Radiated.
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Phyllotaxis: Phyllotaxis is called the arrangement of leaves on the stem.
a) alternately b) opposite.c) statistical d) verticilidas.