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An extinct coniferlike gymnosperm:

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Metasequoia (dawn redwood): a primitive extant conifer. Norfolk Island Pine: a southern hemisphere conifer. Amborella: most primitive extant angiosperm? ... – PowerPoint PPT presentation

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Title: An extinct coniferlike gymnosperm:


1
An extinct conifer-like gymnosperm Cordaites
2
Fossil gymnosperm leaf and reproductive structures
3
The strobilus reproductive structures in many
taxa
In club moss
In pine
In cycad
4
(No Transcript)
5
Krang (aka cycad)
6
Cycad in nature preserve in South Africa
7
Cycad leaf unfurling
Male cones
Female cone
8
Ginkgo in Paris
Ginkgo in autumn
9
Ginkgo female cone
Male reproductive structures (microsporangia)
10
(No Transcript)
11
Gnetum branch
12
(No Transcript)
13
Welwitschia mirabilis in Namibia
14
Female cones
Male cones
15
Ephedra viridis
Reproductive structures
16
(No Transcript)
17
Fossil conifer leaf
18
Metasequoia (dawn redwood) a primitive extant
conifer
19
Norfolk Island Pine a southern hemisphere conifer
20
Amborella most primitive extant angiosperm?
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