Biology 150

Bryophytes Lab 22

 

Liverworts

Marchantia- Type of Liverwort

Have rhizomes- root like sturctures

Thallus - is Hapliod (n) has pores for gases, CO2 and O2

Gemma Cup- (asexual reproduction) Diploid (2n) grows on thallus in cups that hold gemma

Sexual Reproduction

male thallus unbrella like structures growing on thallus, and hav anteridophores

female plants palm tree liek structures with archegoniophores

Mosses

Slides:

12

Polytrichum or Mniym antherida male gamete

13

archegonia felmale

14

sporangium peristomial teeth changes shape

diecioyuse separtate plants for males and females

mosses lack true roots stems and leaves, but hav simalr sturcutes that funciton like true organs

 

spores

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