Bryophyta Flashcards
Plants came to land in which period?
Silurian period
Name the three phyla of bryophytes.
Hepatophyta (Liverworts)
Mosses (Bryophyta)
Hornworts (Anthocerophyta)
Two specialised features of liverworts.
Oil bodies and elaters
Is stomata present in the liverworts?
No, but specialised pores are present that perform specialised guard cells.
Thalloid has a specialised structure for vegetative propagation. Name it.
Gemma cup that has Gemma propagules
The arrangement of mature antheridia and immature antheridia in the antheridiophore?
Acropetal arrangement
Oldest in the centre and youngest at the periphery.
Arrangement of archegonia in the anechigoniophore.
Mature at the end youngest at the centre
Example of liverworts
Marchantia
The type of rhizoids Marchantia have?
Simple and tuberculate
What were hornworts or anthocerophyta formerly called?
Anthocerotae
Do hornworts have stomata?
Some species have
Which phyla forms a symbiotic association with blue green algae?
Hornworts
What is the unique central column found in hornworts called?
Columella
What kind of elaters are found in hornworts?
Pseudo-elaters
Example of hornworts?
Anthoceros, Phaeceros
What kind of rhizoids do Anthoceros have?
Smooth walled
Are air pores and chambers present in the Anthoceros?
No
Which phase of Anthoceros have stomata?
Sporophytic
Do Anthoceros have chloroplast?
Yes
Anthoceros have pyrenoids?
Yes
Do Mosses have stomata?
Yes
Name the specialised conducting cells and sugar conducting cells?
Hydroids
Leptoids
What is the name of the layer present in the spores of mosses?
Perine layer
Name of the protective covering at the end of the sporophyte.
Calyptra
Example of mosses?
Sphagnum, Funaria
Why does sphagnum doesn’t decay easily?
Because of the phenolic compound
What are the colours of rhizoids during different stages of Funaria?
Young rhizoids are colourless and when they mature they become brown. Sometimes develop chlorophyll too.
What covers the apex of the capsule?
Calyptra
