Equisetum Flashcards
1
Q
List four general features of Division Arthrophyta.
A
1) Nodes & internodes
2) Ridged stems
3) Whorled branches
4) Fertile appendages
2
Q
List four features of Equisetum.
A
1) Whorled branches
2) Apical meristem
3) Intercalary meristem at each node.
4) Silicified epidermis
3
Q
What are the Nodes marked by?
A
Leaf sheath: a number of minute, tooth-like leaves joined at their bases.
4
Q
Where do Erect Stems arise from?
A
From subterranean rhizomes that bear wiry roots
5
Q
What type of Stele is present?
A
Eustele
Vascular tissue forms a circle of discrete strands.
6
Q
What happens at maturity?
A
- Vascular tissue is associated with a canal on radius of ridges.
- Canals are also found in cortex valleys of ridges.
7
Q
Where are Stomata & Guard Cells located?
A
Occur on flanks of ridges
