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Lesson 3

Seedless Vascular Plants

Diversity of Seedless Vascular Plants

• Club mosses, also called spike mosses, and

ferns compose the seedless vascular plant group.

• Some seedless vascular plants have a strobilus in their sporophyte – a cluster of spore-bearing
structures.

Seedless Vascular Plants
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Multiple Select

Select all plant groups that are seedless vascular.

• mosses

• horsetails

• hornworts

• club mosses

• ferns

Multiple Choice

Which two characteristics are shared by seedless vascular and nonvascular plants?

• They both have xylem and phloem tissue to transport nutrients and water.

• They both have true stems, leaves, and roots.

• They both live in moist environments and use spores to reproduce.

Diversity of Seedless Vascular Plants

Division Lycophyta

• Descendent from the oldest group of vascular plants

• Sporophyte generation of lycophytes is dominant

• Have roots, stems, and small, scaly, leaflike structures

• Many species are epiphytes – plants that live anchored to an object or another plant.

Seedless Vascular Plants
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Multiple Choice

Seedless vascular plants have real roots, stems and leaves.

• True

• False

Multiple Choice

Which generation is dominant in lycophytes

• Gametophyte generation

• Sporophyte generation

Diversity of Seedless Vascular Plants

Division Pterophyta

• Includes ferns and horsetails

• Most abundant plants during the Carboniferous period (300-359 mya)

• Sporophyte produces roots and thick underground stem called a rhizome, a food-storage organ.

Seedless Vascular Plants
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Multiple Select

Which two plant types can be found in the Division Pterophyta?

• Ferns

• Mosses

• Liverworts

• Horsetails

Multiple Choice

What is a rhizome?

• Food storage stem

• Food storage root

Diversity of Seedless Vascular Plants

Division Pterophyta

• The familiar leafy fern fronds are the sporophyte generation

• Fern spores form in a structure called a sporangium.

• Clusters of sporangia form a sorus.

• Sori usually are located on the undersides of fronds.

Seedless Vascular Plants
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Multiple Choice

Sori of ferns are located on the underside of fronds.

• True

• False

Multiple Choice

Ferns produce spores in specialized structures called ______________.

• fruiting bodies

• seeds

• sporangium

• capsules

Plant Classification

Multiple Select

What are the characteristics of the plant kingdom? choose all that apply

• multicellular

• have tissues and organs

• cell walls & chloroplasts

• autotroph

Multiple Select

Vascular plants can reproduce with

• seeds

• spores

• either

Multiple Choice

True or False

Gymnosperms have seeds in cones or hard berries.

• True

• False

Multiple Choice

True or False

Angiosperms are vascular plants that produce flowers. The flowers can produce seeds or fruits. Angie loves flowers!

• True

• False

Multiple Choice

When classifying plants based on how they reproduce, what part of a plant should a student look for?

• spores and seeds

• roots and leaves

• leaves and stems

• needles and flowers

Multiple Choice

Lucy seeds a plant at the park and knows right away it is a gymnosperm. How can she tell?

• It has flowers

• It has cones.

• It is an apple tree.

• It is moss.

Multiple Choice

What is true about coniferous tree?

• They produce flowers.

• Most are evergreen.

• Most are deciduous.

• All of the above.

Multiple Choice

How do nutrients move through nonvascular plants?

• along stems

• from cell to cell

• through leaves

• from plant to plant

Multiple Choice

The process when plants make food with sunlight.

• photosynthesis

• transpiration

• evaporation

• solar collection

Multiple Choice

What is true about coniferous tree?

• They produce flowers.

• Most are evergreen.

• Most are deciduous.

• All of the above.

Lesson 2

Nonvascular Plants

Multiple Choice

Plants that lack vascular tissue for transporting materials are known as

• vascular plants

• nonvascular plants

Nonvascular Plants
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Diversity of Nonvascular Plants

•Nonvascular plants make up one of the four major groups of plants.

•Nonvascular plants are usually small to allow for transport by diffusion.

•Nonvascular plants are usually found in damp and shady environments

Multiple Choice

The organism in the picture is...

• moss

• liverwort

• hornwart

• fern

Multiple Choice

A hornwort is in phylum ____.

• Bryophyta

• Hepatophyta

• Anthocerophyta

• Lycopodiophyte

Nonvascular Plants
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Diversity of Nonvascular Plants

Division Bryophyta

•Division bryophyta contains the mosses

•Lack leaves but have similar structures

•Produce rootlike, multicellular rhizoids that anchor them to surfaces

•Move water and other substances through diffusion and osmosis

Multiple Choice

The common name for the organism in the phylum Bryophyta is

• horsetail

• clubmoss

• mosses

• fern

Multiple Choice

A tiny, root-like structure made of a few thread-like cells are called a...

• rhizoid

• stalk

• capsule

• protonema

Nonvascular Plants
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Diversity of Nonvascular Plants

Division Anthocerophyta

•Called hornworts because of their hornlike sporophytes

•Move water and nutrients through osmosis and diffusion

•Identifying features include the presence of one large chloroplast in each cell,
mucilage/slime between the cells, and mutualistic relationships with
cyanobacteria

Multiple Choice

Transports water and nutrients cell to cell by osmosis and diffusion

• vascular plant

• nonvascular plant

• vascular & nonvascular plant

Nonvascular Plants
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Diversity of Nonvascular Plants

Division Hepaticophyta

•Called liverworts because of their appearance and medieval medical use

•Tend to grow close to the ground and in areas where moisture is plentiful

•Classified as either leafy or thallose – shaped like a fleshy, lobed structure

•DNA evidence suggests liverworts are the most primitive land plant.

Multiple Choice

A liverwort is in phylum ____.

• Bryophyta

• Hepatophyta

• Anthocerophyta

• Lycopodiophyte

Multiple Choice

Which is not a group of non-vascular plants?

• mosses

• liverworts

• hornworts

• ferns