VASCULAR PLANTS FERN AND FERN ALLIES Tracheophytes The

  • Slides: 47
Download presentation
VASCULAR PLANTS: FERN AND FERN ALLIES

VASCULAR PLANTS: FERN AND FERN ALLIES

Tracheophytes: The Vascular Plants � xylem (for transporting water and mineral nutrients) � phloem

Tracheophytes: The Vascular Plants � xylem (for transporting water and mineral nutrients) � phloem (for transporting sugars from leaves to the rest of the plant) � larger and more complex � sporophyte is more prominent � demonstrate increased levels of organization

Major evolutionary advances of the vascular plants

Major evolutionary advances of the vascular plants

Major evolutionary advances of the vascular plants

Major evolutionary advances of the vascular plants

Major evolutionary advances of the vascular plants

Major evolutionary advances of the vascular plants

PRIMITIVE VASCULAR PLANTS: THE FERN ALLIES

PRIMITIVE VASCULAR PLANTS: THE FERN ALLIES

Division Lycophyta: club mosses � oldest extant group of vascular plants � sporangia organized

Division Lycophyta: club mosses � oldest extant group of vascular plants � sporangia organized into strobili (sing. : strobilus) � may be either HOMOSPOROUS or HETEROSPOROUS � Leaves that contained vascular tissue

REPRESENTATIVE SPECIES Lycopodium ○ isospores ○ bisexual gametophyte

REPRESENTATIVE SPECIES Lycopodium ○ isospores ○ bisexual gametophyte

REPRESENTATIVE SPECIES � Selaginella �small spores (microspores) that germinate to produce the male gametophyte

REPRESENTATIVE SPECIES � Selaginella �small spores (microspores) that germinate to produce the male gametophyte �larger spores (megaspores) that germinate to produce the female gametophyte

Division Sphenophyta: scouring rushes � leaves produced at a node (WHORLS) � production of

Division Sphenophyta: scouring rushes � leaves produced at a node (WHORLS) � production of isospores � spores bearing elaters (devices to aid in spore dispersal) � gametophyte is small, photosynthetic and free-living � Silica concentrated � jointed stems

Division Psilophyta � traditionally considered to be the oldest living lineage of vascular plants

Division Psilophyta � traditionally considered to be the oldest living lineage of vascular plants � lack roots � stem is photosynthetic � no leaves but rather minute enations

� sporangia occur in fused groups (synangia) �bilobed synangia of Tmesipteris �trilobed synangia of

� sporangia occur in fused groups (synangia) �bilobed synangia of Tmesipteris �trilobed synangia of Psilotum � resembles Cooksonia what paleobotanists believe

CHARACTERISTICS: 1. Underground rhizome 2. Unicellular rhizoids 3. Erect stems dichotomize into the main

CHARACTERISTICS: 1. Underground rhizome 2. Unicellular rhizoids 3. Erect stems dichotomize into the main photosynthetic organ

REPRESENTATIVE species � Psilotum (2 species) and Tmesipteris (25 species)

REPRESENTATIVE species � Psilotum (2 species) and Tmesipteris (25 species)

TRUE FERNS

TRUE FERNS

Division Pteridophyta � reproduce by spores from which the free -living bisexual gametophyte generation

Division Pteridophyta � reproduce by spores from which the free -living bisexual gametophyte generation develops � megaphyllous leaves � leaf is called a frond �fiddleheads � central axis of a compound frond is called the rachis

ANTHERIDIUM ARCHAEGONIUM

ANTHERIDIUM ARCHAEGONIUM

READING ASSIGNMENT � READ ON GYMNOSPERMS AND ANGIOSPERMS �You may also use Biology by

READING ASSIGNMENT � READ ON GYMNOSPERMS AND ANGIOSPERMS �You may also use Biology by Campbell and Reece

VASCULAR PLANTS FERN AND FERN ALLIES Tracheophytes TheVASCULAR PLANTS FERN AND FERN ALLIES Tracheophytes The
Ferns and Fern Allies Ferns and Fern AlliesFerns and Fern Allies Ferns and Fern Allies
Plant Reproduction Plants Non vascular plants Vascular PlantsPlant Reproduction Plants Non vascular plants Vascular Plants
Vascular Plants Vascular Plants Tracheata n Nonseedbearing 4Vascular Plants Vascular Plants Tracheata n Nonseedbearing 4
Seedless Vascular Plants Chapter 17 Seedless vascular plantsSeedless Vascular Plants Chapter 17 Seedless vascular plants
Plantae Seed Plants Vascular Plants Formation of vascularPlantae Seed Plants Vascular Plants Formation of vascular
Plantae Seed Plants Vascular Plants Formation of vascularPlantae Seed Plants Vascular Plants Formation of vascular
Plant Parts of Vascular Plants Vascular plants havePlant Parts of Vascular Plants Vascular plants have
Plantae Seed Plants Vascular Plants Formation of vascularPlantae Seed Plants Vascular Plants Formation of vascular
Plantae Seed Plants Vascular Plants Formation of vascularPlantae Seed Plants Vascular Plants Formation of vascular
Plantae Seed Plants Vascular Plants Formation of vascularPlantae Seed Plants Vascular Plants Formation of vascular
Nonseed Vascular PlantsSeedless Plants Seedless Vascular plants nNonseed Vascular PlantsSeedless Plants Seedless Vascular plants n
Vascular Plants with Seeds Vascular Plants with SeedsVascular Plants with Seeds Vascular Plants with Seeds
Vascular Plants with Seeds Vascular Plants with SeedsVascular Plants with Seeds Vascular Plants with Seeds
Vascular Plants Vascular Plants Seedless like Ferns orVascular Plants Vascular Plants Seedless like Ferns or
VASCULAR PLANTS VASCULAR PLANTS Not limited to wetVASCULAR PLANTS VASCULAR PLANTS Not limited to wet
Land Plants vs Aquatic Plants Land Plants VascularLand Plants vs Aquatic Plants Land Plants Vascular
Lab Specimens Plants II Vascular Plant Structures FernLab Specimens Plants II Vascular Plant Structures Fern
Plants 2 5 Tracheophytes b Groups i LycopodiophytesPlants 2 5 Tracheophytes b Groups i Lycopodiophytes
Vascular Risk Reduction Addressing Vascular Risk Vascular RiskVascular Risk Reduction Addressing Vascular Risk Vascular Risk
Vascular Anomalies A Review Introduction Vascular anomalies VascularVascular Anomalies A Review Introduction Vascular anomalies Vascular
The Vascular System The vascular System The vascularThe Vascular System The vascular System The vascular
Vascular and Nonvascular plants Flowering Plant Reproduction VascularVascular and Nonvascular plants Flowering Plant Reproduction Vascular
Seedless Vascular Plants Seedless Vascular Recall Bryophytes haveSeedless Vascular Plants Seedless Vascular Recall Bryophytes have