Diversity of Seedless Vascular Plants Division Lycophyta 21.3 Seedless Vascular Plants Introduction...
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Diversity of Seedless Vascular Plants Division Lycophyta 21.3 Seedless Vascular Plants Introduction to Plants Sporophyte generation of lycophytes is dominant. Reproductive structures produce spores that are club-shaped or spike- shaped. Lycopodium—wolf’s claw Chapter 21
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Transcript of Diversity of Seedless Vascular Plants Division Lycophyta 21.3 Seedless Vascular Plants Introduction...
Diversity of Seedless Vascular Plants
Division Lycophyta
21.3 Seedless Vascular Plants
Introduction to Plants
Sporophyte generation of lycophytes is dominant.
Reproductivestructures produce spores that are club-shaped or spike-shaped.
Lycopodium—wolf’s claw
Chapter 21
Introduction to Plants
Two genera—Lycopodium and Selanginella
21.3 Seedless Vascular Plants
Chapter 21
Have roots, stems, and small, scaly, leaflike structures
Division Pterophyta
Introduction to Plants
Plant division includes ferns and horsetails
Staghorn fern Hawaiian fern
Aquatic fern
Dryopteris
21.3 Seedless Vascular Plants
Chapter 21
Sporophyte produces roots and a thick underground stem called a rhizome, a food-storage organ.
Introduction to Plants
The frond is part of the sporophyte generation of ferns.
21.3 Seedless Vascular Plants
Chapter 21
Introduction to Plants
Fern spores form in a structure called a sporangium.
Clusters of sporangia form a sorus.
Sori usually are located on the undersides of fronds.
Bird’s nest fern
21.3 Seedless Vascular Plants
Chapter 21
