Nalanda Open University
Annual Examination 2016
B.Sc. Botany (Honours), Part-I
Paper-II
Time: 3.00 Hrs. Full Marks: 80
Answer any Five questions. All questions carry equal marks.
1. Describe the economic importance of Gymnosperm.
2. What is a gametophyte? Describe the development of male gametophyte of Pinus.
3. Give details of the development of the female gametophyte of Taxus.
4. Describe the angiospermic characters of Gnetum.
5. "Rhynia is the most primitive vascular plant". Discuss.
6. Give an account of the structure of strobilus of Lepidodendron.
7. Write short notes on any Four of the following
Xerophytic characters of Pinus needle
Petrifaction Fossil flora of Rajmahal hills
Calamites Strobilus of cycadeoidea
Palezoic Period
8. Describe the floral characters of the family Lamiaceae giving floral formula and floral
diagram.
9. Give an account of the floral characters of cucurbitaceae giving floral formula and
floral diagram. Give the english name and botanical name of any two plants of this
family.
10. Assign the following terms to their respective family.
Apocarpous Cyathium inflorescence
Free central placentation Inferior ovary
Spikelet inflorescence Pollinium
Sagittate anther Scorpioid cyme.