Bot3: The Monocotyledonous Plants

8/7/2019 Bot3: The Monocotyledonous Plants

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The

Monocotyledonous Plants


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Monocots

Root system: fibrous with

adventitious roots (wiry root system);

type of stele: siphonostele

Leaves: sessile(no petiole), parallel

venation, with leaf sheath

Stem: do not exhibit secondary

growth, type of stele: atactostele

Generally herbaceous


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A- Zea mays rootsection

B-stem section

C- leaf section

A

B C

Bulliform cells/

motor cells


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Flowers: floral parts usually in

multiples of 4-6

Seed: 1 cotyledon, albuminous (withendosperm at maturity) and exhibits

hypogeal type of germination

Monocots


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monocolpate pollen grain


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D. Magnoliophyta C. Liliopsida

O. Alismatales F. Araceae Colocasia esculenta

O. Asparagales F.Orchidaceae Dendrobium, Vanda

O. Liliales F. Amaryllidaceae Zephyranthes

atamasco

Allium cepa

O. Arecales F. Arecaceae Cocos nucifera

O. Poales F. Poaceae Oryza sativa

Eleusine indicaF. Cyperaceae Cyperus difformis

O. Zingiberales F. Zingiberaceae Zingiber officinale

F. Musaceae Musa sapientum

F. Heliconiaceae Heliconia

Monocots


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Order Alismatales

Family Araceae

Colocasia esculenta

Corm (stem), spadix (inflorescence),bilobed leaf margin


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Order Asparagales

Family Orchidaceae

Dendrobium

Vanda


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Order Liliales

Family Amaryllidaceae

Zephyranthes atamasco

Allium cepa


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Order Arecales

Family Arecaceae (palmae)

Cocos nucifera


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Order Poales

Family Poaceae

Oryza sativabulliform cells


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Order Poales

Family Cyperaceae

Cyperus difformis


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Order Zingiberales

Family Zingiberaceae

Zingiber officinale

Hedychium coronarium


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Family Musaceae

Musa sapientum

Order Zingiberales


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Family Heliconiaceae

Heliconia

Order Zingiberales


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END

Bot3: The Monocotyledonous Plants

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