Long Answer Type Questions

 

35. Distinguish between families - Fabaceae, Solanaceae, Liliaceae on the gynoecium characteristics (with figures). Also write economic importance of any one of the above family.

 


The difference between the three families on the bases of charateristics of hynoecium are as follows

 

Gynoecium Characteristics

Fabaceae

Solanaceae

Liliaceae

Carpels

Ovary

Ovules 

Placentation

Style

Stigma

Floral formula

Monocarpellary free, single

Superior unilocular

Margin in two alternate rows

Marginal

Bent, single

Simple and capitate

Br %  K5  G1+2+2   A1+9+1  G1

Bicarpellary

Superior bilocular (2-4 locular in tomato)

Many in each locular

Axile

Simple

Simple and lobe

Br  K(5)  G5  A5  G(2)

Tricarpellary syncarpous

Superior  

Trilocular

2-many ovules in each locules

Simple but may be united Or separate

Free or fused trilobed

Br     P3+3  A3+3  G¯(3)

 

Gynoecium Characteristics

Fabaceae

Solanaceae

Liliaceae

Diagram of  gnoecium

Floral diagram

 

 

 

Examples

Garlic, onion,   Colchicum

Potato, tomato, brinjal, datura, etc

 

All pulses, sunhemp,  Lupin, Indigo, Cassia

 

Economic Importance of Fabaceae
Plants of this family are the sources of pulses and edible oils. Dye is extracted from Indigofera which is a plant of this family. It serves as a source of various other products like fibres (sunnhemp), facter (Sesbania and Trifolium), ornamentals (lupin, sweet pea) and medicine (multiathi).