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.

• 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

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

white.

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

white.

• 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.

• Northern White Cedar: The needles look like scales.

• Eastern White Cedar:

• Atlantic White Cedar:

Learn more about conifers at… 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!”

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

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.

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

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

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