VASCULAR PLANTS: TRACHEOPHYTES FERNS AND FERN ALLIES

VASCULAR PLANTS:TRACHEOPHYTESFERNS AND FERN ALLIES Club mosses and whisk tails

The antheridia and archegonia are found on the underside of the gametophyte. Figure 29.23x7 Life cycle of a fern: archegonia

FERN GAMETOPHYTES • Haploid or diploid? • What generation is dominant in ferns?

Notice the young sporophyte growing from the gametophyte

Ground Pine LYCOPODIUM

VASCULAR PLANTS: FERNS AND FERN ALLIES Scouring Rushes Ferns (Horse Tails)

Figure 29.21x2 Horsetail

Figure 29.23x6 Life cycle of a fern: gametophyte

Figure 29.24a Fern sporophyll, a leaf specialized for spore production

Figure 29.0 Ferns

Figure 29.25 Artist’s conception of a Carboniferous forest based on fossil evidence

Figure 29.23 The life cycle of a fern

Figure 29.23 The life cycle of a fern 4 2 cell 1 process 3 11 structure 5 10 9 8 6 process 7

Figure 29.23x8 Life cycle of a fern: sporophytes

Figure 29.23x1 Life cycle of a fern: mature fern

Figure 29.24b Fern sporophyll, a leaf specialized for spore production These are SORI. (singular = sorus) Each contains many SPORANGIA (spore cases)

Figure 29.23x2 Life cycle of a fern: sorus Notice the individualsporangia

Figure 29.23x4 Life cycle of a fern: mature sporangium

Figure 29.23x3 Life cycle of a fern: sporangium

Figure 29.23x5 Life cycle of a fern: germinating

VASCULAR PLANTS: TRACHEOPHYTES FERNS AND FERN ALLIES