Group3

Spores

Ferns

What is ferns?

produce spores for reproduction

The spores-bearing structures are usually located on the underside of the leaves

What is spores?

a reproductive cell

develop into a new individual without fusion with another reproductive cell

produced by bacteria, fungi, algae, and plants.

Specimen A

Specimen A

Sporangium

Growing spore -->Completely cover

Mature Sporangium --->Look shrinked

Specimen A

-Spore-

Chisel shape

Attach to the leave

About 50 micro-meter

Specimen B

Specimen B

-Sporangium-

Hair on it

Ball shape

Curved shape

Specimen B

-spores-

Spiky shape

About 30 mirco-meter

Specimen C

Specimen C

-spores-

Hair on it

Attach the leave

About 45micro-meter

Specimen D

Specimen D

-sporangium-

Hair - protect spores

Growing- curve shape and ball shape

Mature - burst

Specimen D

-spores-

Hair attach the leave

About 40micro-meter

Comparison

Sporangium

With hair Without hair

B,D A,C

Smaller Ball shape

------>Closely packed

Larger Line shape

------>Closely packed

Comparisons

A B C D

SporeHair--->stick/attach to the leave

--->stick to the insects' legs -->pollination

Comparison

A B C D

Spore------>Small in size ,Very light weight

For reproduction

Comparison

A B C D

Spore Under the leave Rainwater rush away the spores

Fall to the land directly

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