nonvasular and vascular Flashcards
Plant kingdom
Eukaryotic
Multicellular
Autotrophic
Contain Chlorophyll a
Cell Walls Containing Cellulose
Alternation of Generations
Bryophytes
Liverworts, Mosses and Hornworts
Most primitive group of terrestrial plants
Small
Green
Root-like structures called rhizoids
Do not possess specialized vascular tissues
Moist habitats
Bryophyte Anatomy
Rhizoids
Thallus
Alternation of Generations
Gametophyte is the dominant phase
Antheridia
Archegonia
Plant life Cycle Alternation of Generation
meiosis–spores–mitosis–Gametophyte–mitosis–Egg,Sperm–Fertilization–zygote–mitosis development–embryo–Sporophyte
Phylum Heapiticophyta Liverworts
Asexual Reproduction
Gemmae cups
Bryophyta, Hepaticopsida, Anthocerotopsida
non-vascular all
B-similar structure to leaves, (moss)
H-branching and ribbonlike, (liverworts)
A-horn like structure, (hornworts)
Liverworts Sexual Reproduction(female/male)
liverworts develop miniature umbrella-shaped structures, both male and female.
female-pointy edges
Sperm from the male reproductive organ (antheridium) antheridia travel through an aqueous environment to fertilize the eggs that are still retained in the female reproductive organ (archegonium) archegonia.
Phylum BryophytaMosses
Asexual Reproduction by fragmentation
Sexual Reproduction
Phylum AnthocerophytaHornworts (Anthocerotopsida)
Sporophyte is shaped like a long, tapered horn
Spores are produces in the horn
Arechegonia are not discrete organs
Survey of the Plant Kingdom
Seedless Vascular Plans of the Phyla Pterophyta and Lycophyta
Seedless Vascular Plants
Phylum Pterophyta
- True Ferns
- Whisk Ferns
- Horsetails
Phylum Lycophyta
- Club Mosses
Seedless Vascular Plants
Vascular System
Xylem
Phloem
Sporophyte is the dominant phase
Sporophylls
Sporangia
Require water for fertilization
Fern (Sporagnia)
Fern spores germinate and form thread-
like protonema.
Subsequent
cellular divisions
produce
prothallium.
Phylum Pterophyta
Whisk Ferns-thin long dot
Horsetails- big busy tall
Club Mosses
True roots, stems, and leaves
Sporangia occur on small modified leaves called sporophylls clustered in strobili (cones) that form at the tips of branches.