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Exam 1 - pteridophytes
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24 Terms
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1
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sporophyte (2n)
dominant generation in pteridophytes
2
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whisk ferns
genus psilotum
3
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psilotum
lycopods
equisetum
ferns
major groups of pteridophytes
4
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club mosses, ground pines, spike mosses
lycopods include
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horsetails and scouring rushes
Equisetem includes...
6
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true ferns
polypodiopsida
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psilotopsida (whisk ferns)
what group has dichotomous branching
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psilotopsida (whisk ferns)
what group has only a true stem?
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enations
psilotopsida leaf type
10
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microphylls
lycopod and equisetem leaf type
11
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megaphylls (fronds)
polypodiopsida (true fern) leaf type
12
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homospory
spory of pteridophytes
13
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synangium
cluster of 3 sporangia found in Psilotopsida (whisk ferns)
14
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strobilus w/ sporophylls
unique reproductive structure of lycopods
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strobilus w/ sporangiophores
unique reproductive structure of Equisetum
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sporangiophores
contains clusters of sporangia
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elaters
aid in the dispersal of spores
18
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sorus (sori)
unique reproductive structure of polypodiopsida (true ferns)
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sori
raised spots located on the underside of sporophyte ferns, clusters of sporangia
20
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prostele
stele with solid core of vascular tissue
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siphonostele
stele containing pith region (core of brown tissue) surrounded by vascular tissue
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eustele
stele with isolated vascular bundles, occurs in more complex plants
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protostele
stele of psilotopsida and lycopods
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siphonostele
stele of equisetum and polypodiopsida