diagramatically represent the different ways in which xylem and phloem can be arranged in a stele
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Please find below the solution to the asked query
Following types of steles are possible:
1. Protostele: This is the simplest type of stele which consists of a central solid column of vascular tissues with xylem in the centre surrounded by phloem. Pith is absent. On the basis of shape of xylem,i can be divided as:
a. Haplostele: It has a smooth core of xylem.
b. Actinostele: It has a central core of star-shaped xylem.
c. Plectostele: It has xylem tissues in the form of separate plates which lie parallel to each other with phloem lying in between.
2. Siphonostele: This type of stele has central pith surrounded by cylinder of vascular tissues. It can be divided into:
a. Ectophloic siphonostele:This type of siphonostele shows xylem cylinder lying next to pith and surrounded by phloem cylinder on the outer side.
b. Amphiphloic siphonostele: It has two phloem cylinders, one on the inner side of xylem and other on its outer side.
Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
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Please find below the solution to the asked query
Following types of steles are possible:
1. Protostele: This is the simplest type of stele which consists of a central solid column of vascular tissues with xylem in the centre surrounded by phloem. Pith is absent. On the basis of shape of xylem,i can be divided as:
a. Haplostele: It has a smooth core of xylem.
b. Actinostele: It has a central core of star-shaped xylem.
c. Plectostele: It has xylem tissues in the form of separate plates which lie parallel to each other with phloem lying in between.
2. Siphonostele: This type of stele has central pith surrounded by cylinder of vascular tissues. It can be divided into:
a. Ectophloic siphonostele:This type of siphonostele shows xylem cylinder lying next to pith and surrounded by phloem cylinder on the outer side.
b. Amphiphloic siphonostele: It has two phloem cylinders, one on the inner side of xylem and other on its outer side.
Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards