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Lecture 9

Lecture 9 - Bryophytes, Liverworts, and Hornworts.docx

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Department
Biology
Course
BIO2137
Professor
John Thor Arnason
Semester
Fall

Description
Lecture 9Bryophytes Liverworts and HornwortsOctober1012822 PM KEYWORDSPrimitive terrestrial platsMosses importance sphagnum mossLiverwortHornwort Bryophytes Mosses Liverworts and HornwortsMost primitive terrestrial plantsLack true vascular tissue roots and leavesGametophyte n dominant and bigger than sporophyte 2nAppear before fern allies hornworts their ancestor Mosses1015000 speciesUpright gametophyte carries sporophyteGametophytes are separate male and female plantsPrimitive conducting tissue slide 1011oHydroids wateroLeptoids sugarWidely distributed in many wet habitats especially bogs Gatineau ParkGametophyte sporangium releases spores when dry and is closed when wetImportanceKey group in north
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