Today’s Agenda…Today’s Agenda…

No bellringer or flashbackNo bellringer or flashback Review Unit TestsReview Unit Tests Discuss homework for this weekendDiscuss homework for this weekend Review packet from yesterdayReview packet from yesterday Notes on Seedless PlantsNotes on Seedless Plants

PLANTS

Seedless Plants

SeedPlants

Nonvascular

VascularSeeds in Cones

Seeds in Flowers

Seedless PlantsSeedless Plants

Study Pack #2Study Pack #2

Today’s Goals…Today’s Goals…

I can compare and contrast seedless I can compare and contrast seedless nonvascular plants and seedless nonvascular plants and seedless vascular plants.vascular plants.

I can identify the importance of some I can identify the importance of some nonvascular and vascular plants.nonvascular and vascular plants.

Mosses and LiverwortsMosses and Liverworts SmallSmall Live on bark, rocks Live on bark, rocks

and soil and soil No vascular systemNo vascular system Must live in places that Must live in places that

are wet are wet No true roots, stems, No true roots, stems,

or leaves or leaves

MossesMosses

LiverwortsLiverworts

Mosses and LiverwortsMosses and Liverworts

Live together in large groupsLive together in large groups Covering soil or rocks in a mat of Covering soil or rocks in a mat of

tiny green plantstiny green plants Each moss has Each moss has rhizoidsrhizoids (root- (root-

like structures)like structures) RhizoidsRhizoids help anchor the plant help anchor the plant

Importance of Mosses Importance of Mosses and Liverworts:and Liverworts:

Usually the first plants to inhabit a new Usually the first plants to inhabit a new environmentenvironment

Form a thin layer of soil when they dieForm a thin layer of soil when they die Help hold the soil in place which prevents Help hold the soil in place which prevents

erosionerosion Nesting material for birdsNesting material for birds Peat moss can be burned as fuelPeat moss can be burned as fuel

Ferns, Horsetails, and Ferns, Horsetails, and Club Mosses:Club Mosses:

Grow tallGrow tall Have vascular Have vascular

systemssystems

FernsFerns

FernsFerns

Can grow almost Can grow almost anywhere.anywhere.

Have an Have an underground stem underground stem called a called a rhizome.rhizome.

Leaves are called Leaves are called frondsfronds..

HorsetailsHorsetails

HorsetailsHorsetails

Small vascular plants.Small vascular plants. Grow less than 1.3 meters tall.Grow less than 1.3 meters tall. Grow in wet, marshy places.Grow in wet, marshy places. Stems are hollow and contain cilia.Stems are hollow and contain cilia. Pioneers used them to scrub pots Pioneers used them to scrub pots

and pans.and pans.

Club MossesClub Mosses

25 cm tall.25 cm tall. Grow in Grow in

woodlands.woodlands. Unlike other Unlike other

mosses, they mosses, they have vascular have vascular tissue.tissue.

Importance of Seedless Importance of Seedless Vascular PlantsVascular Plants

Help form soil when they die.Help form soil when they die. Also hold soil in place to prevent Also hold soil in place to prevent

erosion.erosion. Ferns serve as house plants.Ferns serve as house plants. Some are cooked and eaten.Some are cooked and eaten. Formed coal.Formed coal.