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Botany > Monilophytes > Flashcards

Monilophytes Flashcards

1
Q

what phylum are the monilophytes in?

A

monilophyta

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2
Q

what plants are in monilophyta?

A

ferns, whisk ferns, and horsetails

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3
Q

what are the psilophytes

A

whisk ferns

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4
Q

what are characteristics of psilophytes?

A

no roots or leaves, homosporous, no transport tissue

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5
Q

what is synangium?

A

sporangium in psilophytes

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6
Q

what are equisetophytes

A

horsetails and scouring rushes

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7
Q

what deposits do equisetophytes have in their walls?

A

silica

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8
Q

what are the characteristics of equisetohytes?

A

homosporous, true stems and roots, nodes and internodes, ribbed stem, large air canals

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9
Q

what happens to the pith in equisetophytes when they reach maturity?

A

it breaks down

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10
Q

what are the polypodiophytes

A

ferns

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11
Q

what are the true leaves in ferns?

A

megaphylls

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12
Q

what are the true leaves in megaphylls?

A

fronds and fiddleheads

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13
Q

what kind of spores do they have?

A

both homo and heterosporous

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14
Q

what is the organization of tissue in a root?

A

phloem surrounded by xyelm, then cortex

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15
Q

what are the leaves in ferns?

A

C3, monocot with parallel venation

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16
Q

where is the sporangia located?

A

on the underside of a frond

17
Q

where do you find clusters of sporangia?

A

sori

18
Q

what is the reproductive cycle for polypodiophytes?

A

meiosis – spores — germinating spores – gametophytes – antheridium and archegonium — to zygote —- fiddlehead —sorous — insidium — sporangium —- meiosis

19
Q

what shape is the gametophyte and what is it called in a polypodiophyte?

A

heart shaped called prothallus

20
Q

what is the insidium?

A

protective layer around sorous?

21
Q

what does the gametophyte have to help it stay attached to the substrate?

A

rhizoid

22
Q

why do sperm in ferns need water to move?

A

to carry the antheridia to the archegonia

Botany (21 decks)

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