Chapter 23 -6 Flashcards
1
Q
What are the characteristics of pterido/whisk ferns?
A
no leaves/true roots
many are epiphytes
reproduce w/ spores (no seeds)
photosynthesize w/ epidermal tissue
2
Q
Rhizomes have?
A
mycorrhiza symbiosis
3
Q
What are horsetails?
A
trees of the ancient dinosaur forests
4
Q
Pterido. horsetails aka?
A
scouring rushes
5
Q
Silica in in the stem of what tree?
A
horsetail
6
Q
What are true ferns?
A
leafy megaphyll fronds
7
Q
Where do true ferns’ spores develop?
A
in clusters of sproangia in structures called sori under fronds
8
Q
What do the true fern’s spores grow into?
A
a gametophyte stage called Prothallus
9
Q
Archegonia appears?
A
between the lobes of the heart (ventral)
10
Q
Antheridia appears?
A
distributed across entire blade
