Plant Lab Exam 2026
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50 Terms
Was this taken from the dominant generation?
Yes
Which plant is/are homosporous?
Plants that produce only one type of spore, which develops into a gametophyte that can produce both male and female gametes (Only specimen 1 (horse tail) is homosporous).
What was the vascular type tissue found in the gametophyte of Bryidae
No vascular tissue
What taxon does this belong to?
Marchantiophyta
When does this structure open
In dry environmental conditions to allow spore release.
What is this structure called?
Sori are clusters of spore-producing structures found on the underside of fern fronds.
What is the body of this plant called?
Leafy thallus
What did this structure originate from?
Spore
What taxon does this belong to?
Marchantiophyta
Is this generation dependent?
No
What plant taxa is this from?
Isoetacea (quilworts)
What plant taxa is this from?
coniferophyta
What plant taxa is this from?
Psilotopsida (whisk ferns)
What structure is this?
Archegonia
What falls off when the spores are mature?
Operculum
What grows out of these structures?
Thallus from a gemma cup
What taxon does this belong to?
Marchantiophyta
What taxon does this belong to?
Bryophyta-Sphagnidae
What is seen here?
A cross section through secondary xylem
What kind of vegetative leaves are found in these plants?
Both have microphylls
What sex is this plant?
You cannot tell
Is this plant attached to the ground?
Rhizoids
What is the ploidy of the dominant generation?
The haploid gametophyte
What taxon does this belong to?
Brophyta- Bryidae
What feature allows you to know this
The short branches at the apex of the plant (the pom pom)
The body of this plant is called
A thalloid thallus
What cell type is this made of
Tracheids
What taxon does this belong to?
Brophyta- Bryidae
What type of spore and spore development pattern is found in this taxa
Homosporous with exosporic development
What is the structure in the box?
The capsule
What branching pattern is seen in this taxa?
Dicotomous
What generation was this cross section from?
The sporophyte generation
What is the structure that opens the sporangium in this taxa?
The annulus
The structures found in this part of the plant is released under what environmental conditions?
Wet
Can this taxon have the other type of thallus?
Yes, this is a leafy thallus and it can have a thalloid thallus
Would you find a reproductive strobilus in these plants?
Yes, in both specimen 1 and specimen 2
What leaf type is seen here
An enation
What are these structures?
Splash cups, which move sperm
What type of growth form is seen here?
Acrocarp
What generation is seen here?
The microgametophyte
is there an a megagametophyte?
no
What life process occurs in this structure?
Fertilization
Does this come from a bryophyte or one of the vascular plant taxa?
Vascular plants
What is the next step in the lifecycle?
Fertilization
What type of spores are found here?
Heterospores
What life process occurs in this structure?
Meiosis
What happens next?
Pollination
Is the gametophyte independent?
No
