Tracheophyta Flashcards
Which class is only known for their fossils?
Rhyniophytes
When does the vascular plant come on land?
Devonian period
Does Rhynia have roots and lead bearing shoots?
No
Which class contributes most to the earth’s coal?
Lycophyta
How are the roots of lycophyta?
Dichopodial
Which class has lycophyll in their sporophytic leaves?
Lycophyta
Lycophyll?
Present in the sporophytic leaves. They only have single unbranched veins.
Which order of lycophytes is known as club moss?
Lycopodiales
What kind of spores do club mosses have?
Homospores
Eg. Of Lycopodiales
Lycopodium, Phylloglossum, Lycopodiella, Huperzia
Which class of lycophytes have leaf ligules?
Isoetales
Isoetales have what kind of spores?
Heterosporous
Eg. Of isoetales
Seleginella and Isoetes
What kind of roots does euphyllophytes have?
Monopodial
What functions as the primary organ of photosynthesis in euphyllophytes?
Euphylls
Does euphyllophytes have stomata?
Yes
Eg. Of euphyllophytes
Psilophytan
Is siphonostele found in monilophyta?
Yes
Siphonostele?
When phloem surrounds the xylem
Does monilophyta have scarred spores?
Yes
Equipsetopsida contains?
Horsetails
Who has elaters and hollow canals in the monilophyta?
Horsetails
Where does equipsetopsida are grown?
Near wet soil
Eg. Of equipsetopsida.
Equisetum, Hippochaete
Which order among the psilotopsida lacks both root branches and root hairs?
Ophioglossales
Are the gametophyte of psilotopsida photosynthetic?
No
Which family of monilophyta have sterile and fertile segment of the leaf?
Psilotopsida
Except which family of monilophyta, fern of all land plants are eusporangiate?
Leptosporangeate
Who has the highest recorded chromosome count in monilophyta?
Ophioglossum
Who are known as whisk ferns?
Psilotales
Give example of psilotales
Psilotum and Tmesipterin
Are the gametophyte of psilotales photosynthetic?
No
Does psilotale leaf have vascular strand?
No
Does psilotale have true roots?
No
What is siphonostele?
When the xylem is surrounded by phloem
Name the two types of siphonostele.
Ectophloic and amphiphloic
Does marattoid ferns have photosynthetic gametophyte?
Yes
What kind of sporangia do marattoid ferns have?
Eusporangia
What is synangium? And where is it found?
Fused sporangia are called synangium and they are found in marattoid ferns.
Give example of marattoid ferns
Angiopteris, Eupodium, Marattia and Ptisana
Which ferns are perennial? And give exception.
Polypodiopsida or Leptosporangeate ferns.
Except aquatic ferns
What kind of steel found in the stem of leptosporangeate?
All the three types
Siphonostele, Prostele and dictyostele
What are fiddlehead or croziers?
The coiled leaves of leptosporangeate
What are fronds and stipe?
Leaves are called fronds and petiole is called stipe in leptosporangeate
Example of leptosporangeate
Osmunda, Schizaea, Pteridium and Cyatheae
