Gymnosperms and Angiosperms 2 TYPES OF TREES!. Intro to Gymnosperms

Gymnosperms and Angiosperms

• 2 TYPES OF TREES!

• Intro to Gymnosperms

• Step by step drawing.








• Conifers: Describe them based on these pictures of them.

• There are two general types of trees in this area.

Copyright © 2010 Ryan P. Murphy

• There are two general types of trees in this area.– Gymnosperms: Cone bearing, needles.


• There are two general types of trees in this area.– Gymnosperms: Cone bearing, needles.– Angiosperms: Flowering, broadleaf, Foliage.


• Conifers are not defined as being evergreen or having needles instead of regular leaves,


• Conifers are not defined as being evergreen or having needles instead of regular leaves, though that's usually the case.


• Conifers are not defined as being evergreen or having needles instead of regular leaves, though that's usually the case. Conifers, as their name hints, bear cones.


• Because we are focusing identification, we will cover three types of conifers.– White Pine (Pinus strobis)


• White Pine: White has five letters, white pines have needles in groups of 5.



12 3 4 5

W H I T E



1

WH2

I3

T4

E5

W H I T E


• Red Pines have needles in groups of 2.– 2 is less than 5, and Red has fewer letter than

white.

1

2



• Red Pines have needles in groups of 2.– 2 is less than 5, and Red has fewer letter than

white.

RD1

2

E



• Fir are friendly to the touch

• Spruce are spiky to the touch.

• Eastern Hemlock: The needles are narrow, flat and soft, less than 1 inch long.


• Eastern Hemlock: The needles are narrow, flat and soft, less than 1 inch long. Dark green above, with two white lines below.


• Eastern Hemlock: The needles are narrow, flat and soft, less than 1 inch long. Dark green above, with two white lines below.


• Northern White Cedar: The needles look like scales.


• Eastern White Cedar:


• Atlantic White Cedar:


• Atlantic White Cedar:


Learn more about conifers at… http://www.backyardnature.net/conifers.htm

http://www.backyardnature.net/conifers.htm

Gymnosperm: Non-flowering, seeds usually arranged on a cone.


•DREW •AGE •60

“This is one big cone, It

must be one of the largest

ever!”

Wow!,

That’s a big cone!

“I agree.” “Why would

you ever need a cone

that big.”

“I could sure go for a

sno-cone.”

Look at the size of this

cone.

One

Big

Cone

Angiosperm: Flowering, covered seed, produce seeds enclosed in a fruit /ovary.


• Which plant is an angiosperm, and which is a gymnosperm?















• Both Gymnosperms and Angiosperms release pollen.










“I hate Pollen, It gives me wicked

allergies.”

• Picture of pollen under an electron microscope.

• The male cone of a white pine releasing pollen.

• Female cone of white pine that receives the male pollen.


• The seeds of white pine tree that have fallen out the cone.


• The seeds of white pine tree that have fallen out the cone.


Learn more about plant life cycles at… http://urbanext.illinois.edu/gpe/case1/c1facts1b.html

http://urbanext.illinois.edu/gpe/case1/c1facts1b.html

Documents

Gymnosperms and Angiosperms 2 TYPES OF TREES!. Intro to Gymnosperms