Download Nonvascular Plants

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

History of herbalism wikipedia , lookup

History of botany wikipedia , lookup

Plant defense against herbivory wikipedia , lookup

Meristem wikipedia , lookup

Plant breeding wikipedia , lookup

Tree wikipedia , lookup

Plant ecology wikipedia , lookup

Botany wikipedia , lookup

Historia Plantarum (Theophrastus) wikipedia , lookup

Plant physiology wikipedia , lookup

Plant nutrition wikipedia , lookup

Plant morphology wikipedia , lookup

Flowering plant wikipedia , lookup

Xylem wikipedia , lookup

Plant evolutionary developmental biology wikipedia , lookup

Leaf wikipedia , lookup

Perovskia atriplicifolia wikipedia , lookup

Ornamental bulbous plant wikipedia , lookup

Evolutionary history of plants wikipedia , lookup

Fertilisation wikipedia , lookup

Plant reproduction wikipedia , lookup

Glossary of plant morphology wikipedia , lookup

Fern wikipedia , lookup

Transcript
1
SIMPLE VASCULAR PLANTS
Pteridophytes (Ferns)
2
Seedless
Vascular
Plants
Divisions
3




Psilophyta – Whisk ferns
Lycophyta – Club mosses
Sphenophyta – horsetails
Pteridophyta - ferns
Not for examinations
Ferns
4



Largest group of extant
(living) vascular plants
Wide range of habitats
(terrestrial, aquatic,
arboreal tree ferns,
epiphytic)
Can asexually reproduce
by Rhizomes
(underground stems)
Rhizome
Ferns
5



Dominant Sporophyte
stage has true roots,
stems, and leaves
Roots and stems
underground
Leaves called fronds
found above ground and
attached to a stem like
petiole
Fronds
6
7
the fiddle head coming off the
rhizomes.
Parts of the Fern Sporophyte
9
Characteristics of
Pteridophytes
10



Have true leaves and roots
Leaves are called fronds
New leaves are coiled in a bud
Characteristics of
Pteridophytes
11




Roots are fibrous
Anchor the plant
And absorb water and minerals
Grow out of the rhizome
(horizontal stem) that grows
partially underground
Characteristics of
Pteridophytes
12

Have vascular tissue
 Xylem,
tracheids and phloem
Characteristics of
Pteridophytes
13



Reproduce by
means of spores
Spore cases
called sporangia
are found on the
underside of
sporophylls
Sporangia often
occur in clusters
called sori
14
15
Characteristics of
Pteridophytes

Wind spreads spores that
land on moist soil &
germinate into a prothallus
(tiny independent
gametophyte) that
produces gametes
Prothallus
Ferns
16




The prothallus starts the
Gametophyte stage
Gametophyte is heart
shaped and short lived
Male antheridia &
female archegonia grow
on gametophyte
Sperm swims to egg to
fertilize
Archegonia
(eggs)
Prothallus
Antheridia
Sperm
Characteristics of
pteridophytes
17


Produce motile male gametes
Rely on water for fertilisatiom
Fern Prothallus with
archegonia Fern sperm cell
18

Egg cells are
produced in
archegonia
Fern
Archegonia.
19
20
Uses for Ferns
EXTRA
21




Help prevent erosion
Fiddleheads are eaten as food
Ornamental plants for yards and homes
Helped form coal deposits millions of
years ago
22
THE END