LE 1 Flashcards
Vascular plants have xylem and phloem
Tracheophytes
The 1. generation (n), is reduced or is dependent on the sporophyte in many vascular plants.
- gametophyte
The gametophyte generation (2.), is reduced or is dependent on the sporophyte in many vascular plants.
- haploid or n
The gametophyte generation (n), is 3. or is 3. on the sporophyte in many vascular plants.
- reduced, dependent
The gametophyte generation (n), is reduced or is dependent on the 4. in many vascular plants.
- sporophyte
Pteridophytes characteristics
- free sporing
- lower vascular plants
Phylum Lycophyta characteristics
- microphyllous
- lower vascular plants
isoetes phylum
lycophyta, microphyllous
other name: quilworts
isoetes modification
stem: corm
isoetes spores
hetrosporous
- megaspores
-microspores
isoetes sporophyll
microphylls
leaves: large intercellular spaces (common aquatic)
selaginella phylum
phylum lycopodia, pteridophytes
other name: spikemoss
lower vascular plants
selaginella modification
monopodial branching : single stem grows upward producing lateral branches
presence of cavity around vascular bundle
connected to trabeculae
selaginella spores
location and type
strobilus, heterosporous
lycopodium phylum
phylum lycophyta, pteridophytes other name: clubmoss
lycopodium modifications
- monopodial branching
lycopodium spores
location and type
in strobilus, homosporous
- sporangium with isospores
Lycopodium stem arrangement
swirl
