Bryophytes & Seedless Vascular Plants Flashcards
Plant Kingdom traits
Multicellular, eukaryotic organisms with specialized cell types
Autotrophic
Green algae
considered the evolutionary ancestor of terrestrial
plants
Cell wall composed of this
Cellulose
Stomata
Regulates gas exchange
Waxy cuticle
Prevents desiccation
How are plants and algae the same?
Multicellular eukaryotic photosynthetic chlorophyll a and b in chloroplasts Cell wall composed of cellulose
How are plants and algae different?
Plants have alternation of generations & multicellular dependent embryos
Gametophyte
haploid generation that produces gametes
Gametes are produced inside of structures called
gametangia
Sporophyte
diploid generation that produces spores
Spores are produced inside of structures called
sporangia
spore
the first cell of the gametophyte generation
2 types of seedless vascular plants
- Lycophytes (club mosses, spikemosses, quillworts)
2. Monilophytes (ferns, horsetails, whisk ferns)
Features of Nonvascular Plants
Small plant body
Restricted to moist environments
Gametophyte is the dominant generation
gemmae cups
involved in asexual reproduction
traits of Seedless Vascular plants
Sporophyte is the dominant generation
Still require moist environments to reproduce
homospory typical
homospory
1 type of spore and generate a bisexual gametophyte
spore part hierarchy
spores > sporangia > sporophylls > strobili
Rhizome
underground stem that anchors the plant in ferns
Sori
clusters of sporangia on the undersides of leaves
Heterospory
2 types of spores, female & male versions
2 types of Phylum Lycophyta
Selaginella
Lycopodium
2 types of Phylum Monilophyta
Equisetum (horsetail)
Psilotum (whisk fern)
