NON-FLOWERING VASCULAR PLANTS
Phylum Pteridophyta (harasztok törzse)
- include club mosses (korpafűvek), horsetails (zsurlók) and ferns (pafrányok)
3 important differences from non-vascular plants:
1. vascular tissue
2. sporophyte generation is dominant
3. sporophyte generation is independent of the gametophyte
2 similarities to non-vascular plants:
1. produce spores
2. free-swimming sperm must travel on film of water to reach egg
Most commonly seen around here are the horsetails and ferns.
Horsetails
- have hollow stem
- jointed, scale-like leaves
- contain silica, used for scouring
Image from: http://www.dermaxime.com
Images from: http://www.english-country-garden.com
Ferns (pteridophytes)
-most advanced group in phylum and best known
- approx. 12 000 species
- can survive in wide range of habitats, from damp and shady to sunny
- sporophyte generation has roots, stems and leaves (divided into leaflets and called a "frond")
- all ferns in Hungary are protected, except the male fern (erdei pajzsika)
male fern
Life cycle of a fern: (click on image to enlarge)
Image from: http://mac122.icu.ac.jp
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