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Nonvascular plants: Mosses, Liverworts, and Hornworts (Characteristics of…
Nonvascular plants: Mosses, Liverworts, and Hornworts
Nonvascular plants
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Clubmosses, scouring rushes, ferns
Spermatophytes
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Cycads, Conifers, Angiosperms
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Mosses, Liverworts, Hornworts
Characteristics of non vascular plants #
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Composed of true parenchyma derived by three-dimensional growth, usually from apical meristems
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The numerous plate-like structures are gametophytes of a hornwort, Phaeoceros.
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Hydroids, Leptoids and Parenchyma.
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Foot
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Absorbs sugars, minerals, and water
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Peristome teeth
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Respond to humidity, bending outward and opening the sporangium when the air is dry
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Life cycle of a moss.
Division Hepatophyta: Liverworts #
Gametophyte generation
Leafy Liverworts
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Gametangia mixed with regular leaves or positioned on specialized side branches and surrounded by modified leaves
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Both gametophyte stage initiate when spores germinate and establish a small temporary protonematal phase
Leafy vs. Thallose
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