Railsback's GEOL 1122 Plant Links

This is a page of links to pictures of modern plants that are representative of some of the groups that we've talked about in class. The point of the page is simply to show you some examples of these groups, so that you can have a mental image to tie to the new terms that we've had to introduce in class.


Non-vascular plants (Plants without tissue to transport water and nutrients.)
(These are linked here only for contrast with the vascular plants below)

Some liverworts - note the scale

Metzgeria temperata - a liverwort
    (Note that this image is at such high magnification that you can see the cells.)

Leucobryum sp. - a moss

 

Psilophytes (Leafless, rootless, seedless (spore-bearing) vascular plants)

Psilotum nudum
    (Note the lack of leaves)

 

Lycophytes (Seedless (spore-bearing) vascular plants with leaves that produce leaf scars)

Lycopodium sp.
    (Note the many small leaves attached directly to the main stem.)

Lycopodium digitatum
    (You'll have to look more closely to see the tiny leaves on the branching main stem. You can find this plant growing in the woods around Athens.)

Lycopodium clavatum
    (Note the many small leaves attached directly to the main stem.)

 

Sphenophytes (Segmented seedless (spore-bearing) vascular plants)

Equisetum hyemale
    (Note the segmented stalks of these "horsetail reeds" or "scouring rushes". We'll look at some examples in class.)

Equisetum arvense
    (You'll have to look a little more closely to see the segmentation of the stalks.)

 

Ferns (Pteridophytes) Leafy seedless (spore-bearing) vascular plants)

Cheilanthes tomentosa
    (A typical fern.)

 

Seed Ferns (Pteridophytes) (Fern-like vascular plants with seeds.)

Sphenopteris sp.
    (A fossil, because the seed ferns are extinct.)

 

Gymnosperms (Seed-bearing, but not flowering, vascular plants. "Gymnosperm" = "naked seed".)

Pseudotsuga menziesii
    (A conifer - note the cones. The small cones in most of the image are male cones; the two large ones at lower right are female cones.)

Pinus sp.
    (Another conifer - a pine tree. The cones shown are the male cones.)

Ginkgo biloba
    (A ginko - the same as the ones on Clayton Street.)

Cycas revoluta
    (A cycad. Don't be fooled - this is not a palm tree.)

Zamia furfuracea
    (Another cycad, largely to show that it doesn't look like a palm.)

 

Angiosperms (Flowering vascular plants. "Angiosperm" = "enclosed seed".)

Rose sp.
    (A rose - in bloom.)

Andropogon glomeratus
    (A grass - in bloom.)

Roystonea regia
    (A palm tree and its flower - just in case you were still worried about cycads vs. palms.)


If you're still interested, you can go to the University of Georgia Department of Botany's Greenhouse Tour.

You can also go to the University of Oklahoma's page of Botanical Links.


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