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Liverwort Diversity - Evolution and Diversity of Plants - Lecture Slides, Slides of Biology

This lecture is form Evolution and Diversity of Plants. Key important points of Lecture Slides are: Liverwort Diversity, Leafy Liverworts, Lateral Leaves, Bilobed Lateral Leaves, Leaf Complexity, Frullania, Life Stage, Female Gametangia, Perigonial Leaves, Gametangia Position

Typology: Slides

2012/2013

Uploaded on 01/12/2013

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Liverwort Diversity

(Jungermanniales)

> 280 Genera

> 7,000 Species

6

Lateral Leaves (Succubous)

Lateral Leaves (Incubous)

2

3

Complicately Bilobed Lateral Leaves

Underleaves

Leaf Complexity

Bazzania

Leaf Complexity

Cephalozia

Leaf Complexity

Trichocolea

8

9

Leaf Complexity

Porella

Frullania

Leaf Complexity

Life Stage:

17

18

Female Gametangia, Perichaetial Leaves

19

Male Gametangia, Perigonial Leaves

!!!!!!!!!!!!!!

Acrogynous Anacrogynous

Gametangia Position

Life Stage:

Young Sporophyte

Young Sporangium, Sporocytes, Elaters

Oldest Fossil Liverworts

Pallavicinites (370-360 MYA) Pallavicinia (Modern) Metzgeriothallus (350-360 MYA) Metzgeria

24

25

Pellia

Ribbon Liverworts (Metzgeriales)

Gametophyte Diversity

Mature Sporophyte, Sporangum Dehiscence

Ribbon Liverworts

Gametophyte Complexity

Ribbon Liverworts

Location of Gametangia

Ribbon Liverworts

Gametangia

Ribbon Liverworts

Young Sporangium, Sporocytes, Elaters