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Bot-Bryophytes

QuestionAnswer
Major Groups of Plants Bryophytes-mosses liverworts, Pteridophytes-Ferns, Lycophytes-Club/spike mosses, Gymnosperms- seed bearing plants, Angiosperms-Flowering plants.
Bryophytes -most primitive non-vascular land plants. Homosporous create 1 kind of spore.
Phylum Anthocerophyta Hornworts. Have hornlike sporophytes
Phylum Bryophyta Mosses. about 15,000 species. Live in moist environments.Non-vascular. Rhizoids anchor plant in place. Haploid Gametophyte dominant generation
Phylum Hepatophyta Liverworts. Flat Green stiff. Look like liver.
Bryophyte Life Cycle -spores -gametophyte generation (haploid) -gametes -zygote -sporophyte generation (diploid)
Gametangium Structure that produces gametes in mostly mosses.
Archegonium Flask shape structure produces an egg cell (part of gametophyte)
Antheridium Elongate structure that produces flagellated sperm cells (part of gametophyte) Wait for water to help them spread.
Bryophyte Sporophyte Generation Consists of foot-absorbs nutrients from gametophyte, capsule- sporangium that produces spores by meiosis, and seta- elongate stalk that raises the capsule for spore dispersal.
Capsule Parts Calyptra, Operculum, and Peristome
Importance of Bryophytes High water -absorbing ability. Highly acidic. Peat mosses- soil conditioner, wound dressing, burned as fuel in some areas.
Created by: cpatrizi09
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