Lateral meristem

Present on lateral side and increases thickness, girth and diameter

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#Id: 10617

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Classification of peteridophytes

IV.  Filicophyta(Ferns)

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#Id: 10618

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IV. Gymnosperm

non-flowering plants

Naked seeds (fruits are not produced)

Heterosporous- life cycle

Better adaptation for land habitat

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#Id: 10619

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IV.Gymnosperm

Fertilization- Siphonogamous

Shows secondary growth- due to cambium

Seeds are borne on cones

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#Id: 10620

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IV.Gymnosperm

They are perennials and woody plants

They bear tap roots

Ovules - Orthotropous & covered by single integument

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#Id: 10621

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IV.Gymnosperm

Sexual reproduction-Oogamous

Female gametophyte is made up of n endosperm on which 2-8 archegonia are present

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#Id: 10622

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IV.Gymnosperm

Polyembryony - common

Ovules - seeds

Seeds two or more cotyledons