Long Questions: Osmunda Is An Intermediate Between Leptosporangiate and Eusporangiate Fern
Long Questions: Osmunda Is An Intermediate Between Leptosporangiate and Eusporangiate Fern
Long Questions: Osmunda Is An Intermediate Between Leptosporangiate and Eusporangiate Fern
LONG QUESTIONS
3. Describe the vegetative and the sporophyte of Psilotum and differentiate it from
Tmesipteris. (2072 first)
4. Give general characters of pteridophtes. In what way they are similar to and
different from bryophyte? (2072 first) Or
Write a comparative account of the cone of Ophioglossum , Botrychium and
Helminthostachys.
6. Give general characters of pteridophytes. In what way they are similar to and
different from bryophytes. (2071 first) Or
Give a generalized account of the structure of vegetative and reproductive parts in
Psilotum.
9. Describe the structure of leaf of Salvinia and compare it with that of Marsilea.
(2072 final) Or
Describe the vegetative and sporophyte of Psilotum and differentiate it from
Tmesipteris.
1|BIRU BIRU
MSC-BOTANY,Model Questions
SHORT QUESTIONS
5. How are the most primitive land plants related to other pteridophytes? Give a
concise account of their affinity with other group of pteridophyte. (2072 first)
Or
Psilotales are morphologically similar to Psilophytales but recent phylogenetic
classification system keeps them in Pteropsida along with ferns. What are the
common features they share among themselves?
7. What do you mean by the term stele? Give a brief account of the range of steles
found in Lycopodium. (2071 first)
9. How did the most primitive land plants look like? Give a concise account of
their morphological features. (2071 first)
Or
Psilotales are morphologically similar to Psilophytales, but recent phylogenetic
classification system keep them in Pteropsida along with ferns. What are the
common features they share among themselves?
2|BIRU BIRU
MSC-BOTANY,Model Questions
10. Psilophytes (Trimerophytes) are more advanced than the Rhyniophytes, and
are believed to have evolved from latter. In which morphological characters they
show superiority over Rhyniophytes? (2071 first)
Or
Lycopodium sense lato is nowadays divided into three different genera
Lycpodiella, Huperzia and Lycopodium . Give a concise account of the
morphological characters of these three genera.
11. What is the main character which shows that Osmunda shows resemblance
with leptosporangiate ferns? (2072 final)
15. Comment upon the statement ”Selaginella is heterosporous plant”. (2072 final)
Or
Give a brief account of Stelar variation in the stem of Lycopodium.
16. How are the most primitive land plants related to other pteridophytes? Give a
concise account of their affinities with other groups of pteridophytes. (2072 final)
Or
Psilotales are morphologically similar to Psilophytales, but recent phylogenetic
classification system keep them in Pteropsida along with ferns. What are the
common features they share among themselves?
3|BIRU BIRU
MSC-BOTANY,Model Questions
Tribhuvan University
Dean's Office
Semester Examination 2071
Model Question
Semester: First Full Marks: 30
Subject: Pteridophyte (Bot. 517) Pass Marks: 15
Time: 2 hrs.
Candidates are required to give their answers in their own words as far as
practicable. Figures in the margin indicate the full marks.
4|BIRU BIRU