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Nonvascular Plants (Characteristics (General char. (Embryophytes…
Nonvascular Plants
Characteristics
General char.
Embryophytes
Multicellular Sporangia and Gametangia
Terrestrial
Many Stomata
Cuticle covers most of Body
Lack Vascular Tissue
Life Cycle
Alternates between Heteromorphic Generations
Sporophytes
Smaller
Never Independent
Gets minerals from Gametophyte
Mostly Temporary
Inconspicuous
Gametophytes
Larger
More Prominent
Any Familiar Moss
Haploid Phase
Asexual Reproduction
Gametophyte Portion
Division Bryophyta
Mosses
Gametophyte Generation
Morphology
Gametophores
Leafy Stems
No Stomata
Grow from Apical Meristem
Stems always Slender
Tissues
Cortex
Water Transport
Some Moss
Hydroids
Conduct Water
Long
No Cytoplasm when Mature
Leptoids
Resemble Sieves
No Nuclei When Mature
Most Moss
Lack Hydroids/Leptoids
Capillaries on Stems
Conducts Water
Development
Spore Germinates
Mitosis
Repeat
Network of Moss
Protonema
Reproduction
Gametophore
Gametangia
Oogamous
Biflagellate Sperm
Antheridia
Non-Motile Egg
Archegonia
Sporopythe Generation
Sustained By Gametophyte
Main Parts
Foot
Interface
Seva
Slender Stalk
Sporangia
Capsule
Haploid Spores
Structure
True Epidermis
Stomata
Apex
Lidlike
Operculum
Peristome Teeth
Humid
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Dry
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Division Hepatophyta
Liverworts
Gametophyte Generation
Morphology
Leafy
Resembles Mosses
Two Rounded Lobes
Defined Rows
Leaves and Slender Stems
Thallus
Flat
Just Body
Thick
Air Pores
Reproduction
Bisexual
Antheridia
Archegonia
Unisexual
Leafy
Gametangia
Special Leaves
Thallus
Gametangia
Surrounded by Chloroplasts
Sporopyhte Generation
Morphology
Like Mosses
Structure
Foot
Interface
Seta
Clear
Thin Cells
Collapses
Calpytra Covered Sporangia
No Stomata
Lacks Columella
Dihscences
4 Slits
Elators Push Spores
Division Anthocerotophyta
Hornworts
Gametophyte Generation
Morphology
Thin on Edge
Thicker in Center
Mainly Flat
Ribbon Shaped
Life Cycle
Appear in Autumn
Grow in Winter
Spores in Spring
Dies before Summer
Gametangium Development
Distinctive
Mucilage Chamber
Antheridia
Breaks open
Archegonia
Sporophyte Generation
Structure
Foot
Attached to Gametophyte
No Seta
Sporangia
Grows from Foot
Continuously
Horn like Shape
Tip = Dehiscence
Spores
Green
Yellow
Black
Multicellular
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Have Columella