Description of family fabaceae

these ppt slides consist of a detailed description of the family Fabaceae.

1. Description of family fabaceae/ leguminosae in semi technical term Dambar Singh Khatri

2. Pea ( P isum sativum )

3. Distribution:it includes more than 482 genera and 7200 species. They commonly grow in the sub tropical and temperate region.  These families of many species are cultivated as important pulses and vegetable.

4. Habitat: Most of the members of this family are annual, biennial or perennial herbs or climbing, rarely they are shrub and tree.  Root : branched tap root. The roots are usually with nodules containing nitrogen-fixing bacteria like Rhizobium spp . Due to this character the plants are alsocultivated to maintain soil fertility. 

5. Stem: herbaceous or woody, erect or week climber, cylindrical, branched, solid, green and glabrous.  Leaf : alternate or whorled, petiolate, stipulate with foliacious stipule, simple or  compound, leaf lets are modified into tendril in some species, reticulatevenation .   

6. Floral characters Inflorescence : usually racemose types or solitary .   Flowers : bracteates, pedicellate , zyogomorphic , complete, bisexual, usually pentamerous ,  hypogynous or perigynous .  Calyx : sepals-5, gamosepalopus , aestivation valvate or imbricate, sometime bell shaped. 

7. Corolla: petals-5, polypetalous, petals unequal, aestivation imbricate, inferior .   Androecium : stamens 10, usually diadelphous (9+1), anther dithecous , basifixed and introres , inferior.  Gynoecium : carpels 1 (monocarpellary) ovary superior, unilocular with many ovules, placentation marginal, and style bent at base, flat and hairy, stigma simple.  Fruit : legume or pod. 

8. Flower of pea

9. Floral formula: Br. % K (5) C1+2+ (2) A (9) +1 G1   Floral diagram

10. Economic importance Used as vegetable Used as ornaments Helps in nitrogen fixation Used in pulses

11. Thank you