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Derris indica (Lamk.)
Bennet
Medium tree, attaining upto 25 m hieght,
evergree, deliquiscent branching
Tap root system developed, occasionally
horizontal roots are exposed due to soil erosion
Leaves compound, alternate, exstipulate,
rachis upto 25 cm long, imparipinnate
Leaflets petiolate, ovate, entire, acuminate,
dorsiventral, glabrous
Inflorescence raceme
Flowers ebracteate, pedicellate, zygomorphic,
bisexual, complete, pendulous
Sepals 5, gamosepalous, cup-shaped, green,
valvate, inferior, persistent
Petals 5, polypetalous, vaxillary, one
standard, 1 c, long and 0.9 cm wide, apical notched, short appendages,
curved, two wings and two keels
Stamens 10 (9 + 1), diadelphous, staminal
coloumn 1 cm long, anthers remain free, anther bilobed, basifixed, introse,
inserted
Carpels 2, syncarpous, conical, ovary
superior, two ovules in single chamber, marginal placentation, style 1,
terminal, stigma absent
Fruit pod, nut like 5.8 cm long and 3.5
cm broad with persistent calyx, elliptic, gree, but black brown on maturity
and woody on drying
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