bryophytes
the non vascular plants
Phylum Hepatophyta
the liverworts
Phylum Bryophyta
the mosses
Phylum Anthocerophyta:
the hornworts
seedless vascular plants
-Phylum Lycophyta:
clubmosses / lycopods
-Phylum Monilophyta
(Pterophyta): the ferns
-Phylum Monilophyta
(Clade Pterophyta): the horsetails
Phylum Monilophyta
(Clade Pterophyta): the whiskferns
gymnosperms
-Phylum Coniferophyta: the conifers
-Phylum Ginkgophyta: the ginkgos
nonvascular plants
or those plants which do not have a tissue to transport water
and nutrients throughout the plant body.
vascular plants
which do have such a tissue.
The angiosperms are divided into
two major groups
Monocots and Eudicots.
monocot arrangement of vascular bundles
scattered
monocots flower parts in multiples of
three
arrangement of vascular bundles in eudicots
ring shaped
flower parts in multiples of ( eudicots)
four or five
what is a dicot
“two cotyledons
in all three bryophyte phyla…
the haploid gametophytes are the dominant stage of their alternation of generations life cycle.
in seedless vascular plants
their life cycle is a variation of alternation of generations in which the sporophyte is the dominant plant
the four phyla gymnosperms are
phylum cycadophyta - the cycads have a form which resembles
phylum ginkgophyta - only one genus exists. Ginkgos have fan like leaves which turn gold and are lost in autumn
phylum gnetophyta - only three genera exist. Some species are tropical, some live in deserts
phylum coniferophyta- the conifers are the largest group of gymnosperms and produce cones as reproductive structures
phylum anthophyta are unique because
they produce flowers and fruits as part of their sexual reproduction
key features of angiosperms
- they produce flowers
They, like the gymnosperms, produce pollen. The pollen grain is the male
gametophyte.
The female gametophyte (embryo sac) contains the egg and the
diploid central cell that will become the food supply for the embryo after fertilization.
the non vascular plants dominant stage is
gametophyte and the rest is sporophyte
