Phylogenetic survey of Land Plants

1
Phylogenetic survey of Land Plants

• Part 1
• Bryophytes
• Seedless Vascular Plants
• Pterophyta
• Ferns
• Gymnosperms 1

2
paraphyses
antheridia
Mnium Male gametophyte
3
Mnium Female gametophyte
neck
Paraphyses
archegonia
venter
egg
4
Mnium sporangium, capsule
spores
Peristomal teeth
operculum
5
Lycopodium stem cross section
Phloem
Cortex
Epidermis
xylem
Protostele
6
Adiantum cross section of rhizome
Phloem
xylem
Phloem
7
Fern prothalli
rhizoids
antheridia
archegonia
8
Microsporangium (pollen sac) (2n)
Microsporophyll (2n)
Pollen grains (small specks) (1n)
Pinus, male strobilus
9
Young ovulate cone of Pinus
Young cone opens to allow pollen to enter, then
closes back up.