Flashcards in Lab Exam Deck (7)
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1
What are the three phyla/divisions of structurally rather simple terrestrial plants that encompass the small group of bryophytes
(marchantiophyta(liverworts), Anthocerophyta(hornworts) and Bryophyta(true mosses)
2
How are the three phyla of bryophytes similar (marchantiophyta(liverworts), Anthocerophyta(hornworts) and Bryophyta(true mosses)
-They have no specialized tissues such as conducting or supporting tissues.
-They exhibit alteration of heteromorphic generations, with a haploid and diploid generation
-their sporophytes are dependent on the gametophytes and bear only a single sporangium
-The gametophyte is the long lasting (dominant) generation/life form
-require water for fertilization and therefore often low- growing in moist places
-has both archegonia and antheridia on gametophyte
3
What are the two groups that liverworts can be divided into?
The thallose (non-leafy) liverworts and the Leafy liverworts
-marchantia= thallose liverwort
4
What is a thallus?
Ribbon-like dichotomously branching body with a midrib region in the middle/centre of the ribbon (how the gametophyte grows)
5
What are the two classes of Moss that we look at
The Bryidae(The true mosses) and Sphagnum(The peat Mosses)
*didnt look at granite moss
6
What are the three divisions of seedless vascular plants we examine in lab
Lycophyta(club mosses&spike moss), Sphenophyta(horsetails) and pterophyta(ferns)
7