Album of stem and leaf

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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

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.

Classification.

*AIR.

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

Stem. Stipe.

Reed.

Calamus.

Succulent.

Climber.

Tuber.

Yam.

Pope.

Cassava.

Rhizome.

Bamboo Mexico.

Lily rhizome.

EXTERNAL PARTS:

(LEAF)

Lateral rib

Acorazonada.

Escuamiform. (flaky).

Acicular (needle).

Flabellate.(fan-shaped)

Ovate.(egg-shaped).

According aside:

Ciliated.

Crenate.

Toothed.

I denticulate.

Double sawing.

Integer.

Lobed.

Sawing.

Finely serrated.

I sinuate.

Prickly.

Wavy.

As venation:

Open. Closed.

Dichotomous.Longitudinal striated.

Webbed. Parallel.

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

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

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