How to answer Plant Taxonomy
Q .Compare the characters of Caesalpiniaceae, Mimosaceae & Fabaceae. Mention few pulse-yielding plants.
8+2=10, 4th Paper, 2012,TU. 2008 Syllabus
Answer:
1 Leaves:
Caesalpiniaceae..... Paripinnate
Mimosaceae........... Bipinnate
Fabaceae................ Imparipinnate
2 Infloresences
Caesalpiniaceae.....Raceme or panicle or rarely cymose.
Mimosaceae......... Spike (e.g. Dicrostachys) or head-like globose spike
Fabaceae..............Raceme, panicle (e.g.Dalbergia),dense axillary head(e.g. Trifolium), solitary (e.g. Lathyrus).
3 Flower:
Caesalpiniaceae.... Slightly zygomorphic
Mimosaceae......... Actinomorphic and regular.
Fabaceae............... Zygomorphic
4Calyx:
Caesalpiniaceae....Sepals imbricate, 5 or less sometimes, connate,odd one anterior.
Mimosaceae........Sepals valvate rarely imbricate(e.g. Parkia), usually 5, connate, odd one posterior.
Fabaceae.............Sepals imbricate, 5, connate, odd sepal anterior.
5 Corolla:
Caesalpiniaceae..Petals 5, ascending imbricate,the odd 5th petal is innermost & posterior.
Mimosaceae.......Petals 4 or 5,valvate.
Fabaceae............Petals 5, descrnding imbricate, the odd 5th petal is outermost, posterior & largest.
6 Androecium:
Caesalpiniaceae..... Stamens 10 or less, free.
Mimosaceae..........Stamens definite or indefinite, free or monadelphous.
Fabaceae...............Stamens 10, mona- or diadelphous.
7Gynoecium:
Caesalpiniaceae.... Monocarpellary, unilocular, marginal placentation.
Mimosaceae........... Same
Fabaceae.................Same
8 Fruit:
Caesalpiniaceae.....Legume
Mimosaceae...........Lomentum
Fabaceae................Legume
Pulse yielding plants:
1Cajanus cajan......Arhar/Pigeon pea
2 Cicer arietinum...Chola/Gram/Chick pea
3 Glycine max........ Soyabean
4 Lens culinaris..... Musur/ Lentil
5 Pisum sativum......Matar/ Garden pea
6 Phaseolus mungo... Mushkalai/ Black gram
7 P.aureus ........ Mung/Green gram
8Vigna aconitifolia..... Moth.
Comments
Post a Comment