1.4.1 Fern allies

Question 1

What two plants families are included in the phyllum lycopodiophyta

Answer 1

lycophytes and club mosses

Question 2

what plants are in the phylla Pteridophyta?

Answer 2

whisk ferns and horse tails

Question 3

characteristics of fern allies (4)

Answer 3

1. they reproduce by spores and have two generations
2. they have dominant sporophyte and a small free living gametophyte
3. they need water for sperm to fertilize egg
4. conducting tissue

Question 4

what is a microphyll?

Answer 4

a leaf with a single, unbranched vein

Question 5

two characteristics of club mosses

Answer 5

true microphylls

megagametophyte (female) and microgametophyte (male)

Question 6

what is a gametophyte?

Answer 6

the cycle of the plant that produces the zygote from which the spore arises

Question 7

what is a living group of the lycophytes?

Answer 7

club mosses

Question 8

For this phyla, the life cycle is homosporous

Answer 8

lycopodium

Question 9

for this group, the life cycle is heterosporous. what are the two spores called, and what is there gender?

Answer 9

Selaginella

megaspore (female) and microspore (male)

Question 10

what is the latin name for ferns?

Answer 10

pteridophyta

Question 11

recent molecular evidence has put what two primitive groups of plants in with ferns?

Answer 11

horsetails and psilotum

Question 12

what is a limiting factors for fern expansion

Answer 12

they need to stay in wet environments because they need water to reproduce

Question 13

what is the life cycle of the fern?

Answer 13

dominant sporophyte and free living gametophyte

Question 14

define the psilotum (2 points)

Answer 14

used as an example of what early plants looked like, but actually devolved from ferns
2. lack both leaves and roots

Question 15

define horsetails (3 points)

Answer 15

1. “Dominated caboniferous forests 300 mills”
2. segmented stems with silica
3. only one genus survives today, the Equisetum.

Question 16

What is a megaphyll?

Answer 16

a leaf that has more than one vein or vascular trace. They are found on ferns, gymnosperms, and angiosperms