This slide is helpful for botany students.

1. Salient features of different families
Fabaceae (Leguminosae )
 Presence of nodulein roots.
 Bipinnatelycompoundleaves.
 Pertial perigynousflower.
 Ovary one chambered.
 Marginalplacentation.
 Fruits legume, pod or lomentum.

3. Poaceae ( Graminae ).
 Plant herbaceous except bamboo.
 Leaf with parallel venation.
 Fibrous root system,
 Stem cylindrical, hollow except nodes.
 Legulate leaves.
 Infloresence spikelet.
 Versatile anther.
 Stigma feather like.
 Fruit caryopsis.

6. Asteraceae ( Compositae )
 Plant herbaceous.
 Flower epigynous.
 Infloresence capitulum or head surrounded by involucral
bracts.
 Calyx modified into pappus.
 Presence of ray and disc florates.
 Ovary inferior, one chambered with one ovule.
 Basal placentation.
 Stamen syngenesions.
 Fruit sypsella.

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9. SalientFeatures of differentorganism
Nostoc
 Nostoc is prokaryotic.
 Trichomes of Nostoc are found embedded in mucilaginous
envelope.
 Each trichome posses many spherical cells and moniliform
in appearance.
 Presence of heterocyst.
 Reproduces by fragmentation, akinete and hormogonium.
 Absence of sexual reproduction.
 Blue green alga.

11. Agaricus
 Branched and septate mycelium.
 Fleshy basidiocarp.
 Club shaped basidia.
 Four basidiosporesare produced on four sterigmata of
the basidium.
 Basidiosporesare oval shaped thick walled and
uninucleated.

13. Marchantia
 Green, dorsiventral and dichotomous branching.
 Non – vascular thalloid body.
 Internally differentiated into photosynthetic and storage
region.
 Photosynthetic filaments are branched.
 Presence of rhizoids.
 Antheridia and archegonia are present on special
structure.
 Sporophyte is differentiated into foot, seta and capsule.

15. Selaginella
 Cryptogamous vascular plant.
 Plant body differentiated into root, stem and leaves.
 Leaves are arranged in four rows around them.
 Presence of rhizophore.
 Presence of more tham one stele within the stem.
 Presence of trabeculae.
 Heterosporous.

17. Cycas
o Large compound leaves, leaves are spirally arranged
at the top of the stem.
o Presence of circinate vernation and coralloid roots.
o Heterospous.
o Megasporophyll does not produce cone.
o Presence of nucllarbeak, pollen chamber, archegonia
and antheridial chamber.
o Antherozoidsare motile with multiflagella.

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