compact wood
soft-loose wood
compact wood with abundant parenchyma
soft-loose wood with abundant parenchyma
D. soft-loose wood with abundant parenchyma
roots of Pinus
normal roots of Cycas
coralloid roots of Cycas
stems of Pinus
Pinus
Mango
Dalbergia
Ficus
Ephedra
Cycas
Pinus
Selaginella
microsporophyll
microsporangium
megasporophyll
megasporangium
1-4 leaves
2-5 leaves
2-4 leaves
1-5 leaves
at the time of fertilization
before fertilization
after fertilization
before or after fertilization
Dryopteris
Cycas
Pinus
Both (b) and (c)
outer integument
endosperm
funiculus
nucellus
Selaginella
Pinus
Cycas
Funaria
Pirtus
Selaginella
Cycas
Funaria
positively geotropic
apogeotropic
phototropic
chemotropic
naked ovules
vessels
vascular tissue
none of these
Pinus
Cycas
Sequoia
Selaginella
4
3
2
0
it is found only in China
it looks like a fern tree
it has ciliated sperms
it also occurs as a fossil
Cycas
Pinus
Both (a) and (b)
None of these
one
two
three
four
Coniferales
Gnetales
Cycadales
Both (a) and (b)
Dryopteris
Grtetum
Pinus
Cycas
vessels only
tracheitis only
equal number of both
more of tracheids and less of vessels
Ginkgo biloba
Pinus gerardiane
Cycas revoluta
None of these
Circinate venation of foliage leaves
Presence of armed parenchyma
Presence of motile sperm
Absence of vessels in the xylem
closed, conjoint parallel vascular bundles
open, conjoint parallel vascular bundles
open, separate parallel vascular bundles
open, conjoint collateral vascular bundles
integument and nucellus
ovuliferous scale and integument
carpellary and ovuliferous scale
bract scale and integumnet
compact wood
soft-loose wood
compact wood with abundant parenchyma
soft-loose wood with abundant parenchyma
Presence of ovuliferous scale
Embryo with two cotyledons
Resin canals in needles
Tracheids with bordered pits
water
wind
insects
animals
cambium
cliliated sperms
seeds
flowers
scales
pistils
stamens
petals
isogamous
double
oogamous
siphonogamous