📚
GENERAL CHARACTERS
▢ Position: 1st vascular land plant
▢ Main Plant Body:
▢ Spore Condition:
- •Homosporous
- •Heterosporous
▢ Common Names:
- •Reptiles of plant kingdom
- •Botanical snakes
📚
VASCULAR BUNDLE
Table 1: Vascular Features
Feature | Status | Note |
|---|---|---|
Cambium | Absent | Secondary growth absent |
Exception | Isoetes | Secondary growth present |
Phloem companion cell | Absent | - |
Sieve tube | Absent | - |
Sieve cell | Present | - |
📚
HABITAT
▢ General Habitat: Land
▢ Aquatic Exceptions:
Table 1: Aquatic Pteridophytes
Plant | Important Points |
|---|---|
Azolla |
|
Marsilea | Aquatic pteridophyte |
Salvinia | Rootless pteridophyte |
📚
SIZE
▢ General: Small herb-like plants
▢ Exceptions:
Table 1: Large Pteridophytes
Plant | Feature |
|---|---|
Alsophila | Largest / tallest pteridophyte |
Cyathea | Tree fern |
📚
PLANT BODY DIFFERENTIATION
▢ Root:
- •Generally adventitious
▢ Stem:
- •Usually underground rhizome
▢ Root-like Terms:
Table 1: Rhizo- Terms
Term | Meaning | Found In |
|---|---|---|
Rhizomorph | Root-like absorptive structure | Fungi |
Rhizines | Root-like anchoring structure | Lichen |
Rhizoid | Root-like structure | Bryophyta |
Rhizophore | Axis between root and stem | Selaginella |
❖ Rhizophore Note:
- •Organ of sui generis
- •Sui generis → unique / one of its own kind
▢ Leaf:
Table 1: Leaf Types
Leaf Type | Function |
|---|---|
Tropophyll | Photosynthetic leaf |
Sporophyll | Spore-producing leaf |
❖ Sporophyll:
- •Contains sporangium
▢ Sporangium Types:
Table 1: Leptosporangiate vs Eusporangiate
Feature | Leptosporangiate | Eusporangiate |
|---|---|---|
Origin | Single initial cell | Group of cells |
Evolution | Advanced | Primitive |
Examples |
|
|
📚
CLASSIFICATION
Table 1: Classes of Pteridophyta
Class | Spore Condition | Examples | Important Points |
|---|---|---|---|
Psilopsida | Homosporous |
|
|
Lycopsida | Homosporous / Heterosporous |
|
|
Sphenopsida | Homosporous |
|
|
Pteriopsida / Filicopsida / Filicinae / Ferns | Homosporous / Heterosporous |
|
|
Q1.
In Pteridium circinate-vernation is found in [MOE 2008]
📅MOE 2008
Q2.
Which structure protects a group of sporangium in a fern: [MOE 2063)
📅MOE 2063)
Q3.
Gametophyte of fern is [MOE 2002, 2057]
📅MOE 2002, 2057
Q4.
Male gamete in fern is: [MOE 2055]
📅MOE 2055
Q5.
Frond is the name of leaves of: [IOM 2003]
📅IOM 2003
Q6.
The vascular cryptogam is: [IOM 2002]
📅IOM 2002
Q7.
Sporangia in fern are found in: [IOM 2000]
📅IOM 2000
Q8.
Stele in fern is: [IOM 1999]
📅IOM 1999
Q9.
A plant which has vascular tissue but lacks seed is placed in: [IOM 1999]
📅IOM 1999
Q10.
Another name of alternation of generation is: [BPKIHS 2000]
📅BPKIHS 2000
Q11.
Which is not true about alternation of generation? [BPKIHS 2003]
📅BPKIHS 2003
Q12.
Stele lacking pith is called: [BPKIHS 2005]
📅BPKIHS 2005
Q13.
Which of the following is called Resurrection plant? [BPKIHS 200
Q14.
Sporangium developed from a group of cells is called: [BPKIHS 2005]
📅BPKIHS 2005
Q15.
Ferns differ from moss in having: [IE - 2001]
📅IE - 2001
Q16.
In Selaginella, ligule is found at [BPKIHS - 2014]
📅BPKIHS - 2014
Q17.
Pteridophytes differ from bryophytes in respect of [BPKIHS - 2012]
📅BPKIHS - 2012
Q18.
Pteridophytes differ from bryophytes in possessing [IOM-2013)
📅IOM-2013)
Q19.
Vascular cryptogams is [IOM-2015)
📅IOM-2015)
Q20.
In fern, which of the following cell is binucleate? [MOE 2014)
📅MOE 2014)
Q21.
Which one of the following groups of plant shows independent alternation of generation? [MOE 2013]
📅MOE 2013
Q22.
Which group is called vascular cryptogam? [MOE 2013]
📅MOE 2013
Q23.
Apogamous sporophytes formed in ferns are [MOE 2012]
📅MOE 2012
Q24.
Gametangia of fern are produced on the [MOE 2068]
📅MOE 2068
Q25.
Antherozoids of Pteridum are [MOE 2010]
📅MOE 2010