CHARACTERISTIC FEATURE OF GYMNOSPERMS:-
# include 70 living genera, 725 species out of 16 genera and 53 species from India.Acc. To Raizad sahni in 1960
# living gymnosperm found in temperate region, cold climate, dry region even artic region# CYCAD'S:-Few gymnosperm found in plain
# gymnosperm are perrenial (live long) ,xerophytic (found on dry climate or water) ,evergreen, aborescent
EXTERNAL FEATURE:-
# plant body is sporophytic differentiate into root, stem and leaf
# tallest gymnosperm = Siquia
Smallest gymnosperm = Zamea
# root system is tap root system
# special feature:- root is associated with algae in symbiotic relationship
# few root also associated with fungi
# stem may me branched or unbranded
# on stem leaf is Scarl are found# leaf may be
1) Monomorphic 2) Dimorphic/ \Folliose. Scale
INTERNAL FEATURE:-
# vascular bundle found in ring
# secondary growth found
# annual ring is found
# include 70 living genera, 725 species out of 16 genera and 53 species from India.Acc. To Raizad sahni in 1960
# living gymnosperm found in temperate region, cold climate, dry region even artic region# CYCAD'S:-Few gymnosperm found in plain
# gymnosperm are perrenial (live long) ,xerophytic (found on dry climate or water) ,evergreen, aborescent
EXTERNAL FEATURE:-
# plant body is sporophytic differentiate into root, stem and leaf
# tallest gymnosperm = Siquia
Smallest gymnosperm = Zamea
# root system is tap root system
# special feature:- root is associated with algae in symbiotic relationship
# few root also associated with fungi
# stem may me branched or unbranded
# on stem leaf is Scarl are found# leaf may be
1) Monomorphic 2) Dimorphic/ \Folliose. Scale
INTERNAL FEATURE:-
# vascular bundle found in ring
# secondary growth found
# annual ring is found
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