Lycophytes

Question 1

Are lycophytes homosporous or heterosporous?

Answer 1

Mostly homosporous, some are heterosporous

Question 2

Are lycophytes sporophyte or gametophyte dominant?

Answer 2

Sporophyte

Question 3

What type of leaves are present in lycophytes?

Answer 3

Microphylls

Question 4

What are the 3 families of lycophytes?

Answer 4

Lycopodiaceae: clubmosses
Selaginaellaceae: spike mosses
Isoetaceae: quillworts

Question 5

How do you tell a clubmoss from a spike moss?

Answer 5

Clubmosses are homosporous, spike mosses are heterosporous

Question 6

What is the stem in the Lycopodiaceae?

Answer 6

Underground branching rhizome that the roots grow out of

Question 7

What are sporophylls?

Answer 7

Leaves that carry sporangia

Question 8

Is the lycophyte sporophyte completely independent for it’s entire life?

Answer 8

Depends on the gametophyte for nutrition in early development

Question 9

Are the Selaginellaceae homosporous or heterosporous?

Answer 9

Heterosporous

Question 10

What is a corm?

Answer 10

Fleshy underground storage stem found in the Isoetacaea

Question 11

Are the Isoetaceae homosporous or heterosporous?

Answer 11

Heterosporous